환경 및 무역 관련용어 모음집 environmental and trade terms : 24901-25000

환경 및 무역 관련용어 모음집 environmental and trade terms : 24901-25000

번호                  용어                  해설

24901    ◆         pile hammer      ◆         the heavy weight or ram of a piledriver.

24902    ◆         piledriver           ◆         a framed construction for driving piles, in which a heavy weight is raised and dropped on a pile head or in which a steam hammer drives the pile.

24903    ◆         pileup   ◆         the elements, such as contact arms, assemblies, or springs, mounted on a relay with a layer of insulation between each.

24904    ◆         pillar crane        ◆         a crane that is rotated about a fixed pillar so that the load is moved horizontally along the periphery of a circle.

24905    ◆         pillar press         ◆         a punch press framed by two upright columns through which the driving shaft passes as the slide moves between them.

24906    ◆         pillow lava         ◆         bulbous masses of lava, resembling a pile of pillows, that flow from an underwater eruption; its form results from the chilling of magma in water. Also, ELLIPSOIDAL LAVA.

24907    ◆         pilot      ◆         a guide for positioning two adjacent parts; usually consists of a projection on one part that fits into a recess on the other part.

24908    ◆         pilot drill           ◆         a small drill used to start a hole to keep a larger drill true to center.

24909    ◆         pilot production  ◆         the extraction of a limited amount of gas or oil for purposes of determining reservoir and product characteristics before engaging in full recovery operations.

24910    ◆         PILOT SCALE       ◆         중간 시험규모의

24911    ◆         pilot streamer     ◆         a theoretical, nonluminous lightning streamer that lays down a weak ionization path, which is followed by the stepped leader in cloud-to-ground discharges.

24912    ◆         PILOT TEST         ◆         예비시험, 파이롯트시험

24913    ◆         Pilot Tests          ◆         Testing a cleanup technology under actual site conditions to identify potential problems prior to full-scale implementation.

24914    ◆         PIMS     ◆         Pestcide Incident Monitoring System

24915    ◆         pin        ◆         ㆍ a cylindrical piece of wood or metal used to fasten two parts together or to support one part that is suspended from another, allowing freedom of motion.a cylindrical piece of wood or metal used to fasten two parts together or to support one part that is suspended from another, allowing freedom of motion. ㆍ a small axle about which a lever oscillates.a small axle about which a lever oscillates. 3. a spindle about which a pulley is supported.a spindle about which a pulley is supported.

24916    ◆         PIN       ◆         Pesticide Information Network

24917    ◆         PIN       ◆         Procurement Information Notice

24918    ◆         PIN construction ◆         a semiconductor structure that has low- resistant P-type and N-type regions with a high-resistant instrinsic region sandwiched in between. (An acronym for positive-instrinsic-negative construction.)

24919    ◆         pin diode           ◆         a device in which the silicon substrate is doped with P-type material on one side and N-type material on the other, producing a lightly doped layer between the two which acts as a dielectric barrier; commonly used as a variable microwave attenuator.

24920    ◆         pin junction       ◆         a device that has three distinct semiconducting regions, one that has P-type impurities, one that is electrically pure (intrinsic), and one that has N-type impurities.

24921    ◆         pin rod  ◆         a connecting rod that allows two parts to function as one.

24922    ◆         pinacoid ◆         a pair of opposite parallel faces of a crystal. If the faces are perpendicular to a chosen axis, they are named accordingly as base, front, and side pinacoids.

24923    ◆         pinch resistor     ◆         a device in which a P-type material is layered over an N-type material to greatly increase the device's resistance value.

24924    ◆         pinch-off voltage ◆         in a field-effect transistor, the voltage needed to block current flow between the source and the drain.

24925    ◆         pinion   ◆         the smaller of a pair of high-ratio toothed spur wheels.

24926    ◆         pink noise          ◆         noise that has a nearly constant loudness at all frequencies within its frequency range.

24927    ◆         pion condensate ◆         a condition resulting from interaction of a large number of pairs of particles, each pair made up of a positive pion and a negative pion, with the nucleons causing them to form a coherent state.

24928    ◆         PIP        ◆         Public Involvement Program

24929    ◆         pipe      ◆         a vertical conduit leading from the magma chamber below a volcano to the earth's surface. Also, BRECCIA PIPE.

24930    ◆         PIPE CAVITY METHOD      ◆         관삽입법

24931    ◆         pipe die ◆         a screw plate used to cut threads on a pipe.

24932    ◆         PIPE LINE           ◆         관로

24933    ◆         PIPE NET            ◆         관망, =pipe line net

24934    ◆         pipe still ◆         an apparatus used to distill crude petroleum, consisting of coiled tubes enclosed in a furnace.

24935    ◆         pipeline mixer    ◆         an electric mixer designed to attach to a pipeline and mix fluids without interrupting flow through the line; used extensively in food processing.

24936    ◆         PIPQUIC ◆         Program Integration Project Queries Used in Interactive Command

24937    ◆         PIRG     ◆         Public Interest Research Group

24938    ◆         PIRT      ◆         Pretreatment Implementation Review Task Force

24939    ◆         piston   ◆         the working part of a pump, hydraulic cylinder, or engine that moves back and forth in the cylinder to control the passage of fluid.

24940    ◆         piston blower     ◆         a piston-operated, positive-displacement air compressor.

24941    ◆         piston corer       ◆         a corer, consisting of a steel tube with a lead attached to its upper end, used to recover distorted vertical sections of sediment.

24942    ◆         piston displacement        ◆         the amount of air displaced by a piston in a cylinder from the bottom to the top of its stroke; it is equal to the distance the piston travels times the internal cross section of the cylinder.

24943    ◆         piston drill         ◆         a heavy drill mounted on a horizontal bar or on a short horizontal arm fastened to a vertical column. Also, RECIPROCATING DRILL.

24944    ◆         piston engine     ◆         an engine in which the periodic compression of the working fuel causes the oscillation of a piston in a cylinder. Also, DISPLACEMENT ENGINE, RECIPROCATING ENGINE.

24945    ◆         piston head        ◆         the point above the top ring of a piston.

24946    ◆         piston meter      ◆         a device that measures the flow rate in a piece of equipment by recording the piston's movement in relation to the liquid's buoyant force. Also, piston-type area meter.

24947    ◆         piston ring         ◆         a split metal ring used for sealing the gap between a piston and a cylinder wall, thus inhibiting leakage. Also, PACKING RING.

24948    ◆         piston rod          ◆         a rod rigidly coupled to a piston that moves parallel to the piston and its enclosing cylinder, transmitting movement to an attached mechanism.

24949    ◆         piston skirt        ◆         the part of a piston below the head bore.

24950    ◆         piston speed      ◆         the total distance a piston travels during a given period of time, usually expressed in feet per minute.

24951    ◆         piston valve        ◆         a cylindrical steam engine slide valve for emission and exhaust of steam.

24952    ◆         piston viscometer           ◆         an instrument that measures the viscosity of a liquid by recording the rate at which a piston moves through the liquid.

24953    ◆         PISTONE PHONE ◆         피스톤 폰 : 모터에 의해 기계적으로 피스톤을 구동시켜 공간부의 용적변화로 음압을 발생시킴

24954    ◆         PIT        ◆         Permit Improvement Team

24955    ◆         pitch     ◆         ㆍ the angular displacement of a body about a transverse horizontal axis parallel to the lateral axis of the body.the angular displacement of a body about a transverse horizontal axis parallel to the lateral axis of the body. ㆍ to move about such a horizontal axis.to move about such a horizontal axis.  Aviation. a deviation from level horizontal flight.  Robotics. a vertical wrist movement in a robotic arm.

24956    ◆         pitch acceleration           ◆         the angular acceleration of a body about its horizontal axis.

24957    ◆         pitch axis           ◆         the horizontal axis about which a vehicle pitches. Also, PITCHING AXIS.

24958    ◆         pitching moment            ◆         a moment about the pitch axis.

24959    ◆         pitman  ◆         the extension on a pumping unit that joins the crank with the walking beam, thus converting rotary motion to reciprocating motion.

24960    ◆         PITOT TUBE        ◆         피토관; 수처리시설에서 사용되는 유량측정 장치

24961    ◆         PITS      ◆         Project Information Tracking System

24962    ◆         PITTING CORROSION      ◆         공식; 국부부식의 일종, 부식이 착공성 또는 소공상태로 진행되는 현상, 점식이라고도 함

24963    ◆         Pitzer equation   ◆         a formula that estimates how much heat organic and simple inorganic compounds generate when they vaporize

24964    ◆         pivot     ◆         a short, pointed shaft that forms the center and fulcrum on which something balances, oscillates, or turns.

24965    ◆         pK        ◆         a measurement of the degree of completeness of a reversible reaction, defined as the negative logarithm of the equilibrium constant K; used, for example, to describe the extent of disassociation of a weak acid.

24966    ◆         plague count      ◆         a technique used to determine the number of phage particles or infected bacterial cells in a suspension; the sample is diluted and used to inoculate an agar plate, and the number of cultures produced are then counted.

24967    ◆         plait point          ◆         the point at which two partially miscible liquids become completely miscible following the addition of another liquid that is completely miscible in both of them.

24968    ◆         plan equation     ◆         a mathematical representation of horsepower, taking into account the mean effective pressure, the length of piston stroke, the net area of the piston, and the number of cycles over a specified time.

24969    ◆         plan position indicator     ◆         an instrument that displays signals from various targets at points on its screen that correspond to points on a circular map of the area under surveillance, with the radar's antenna at the center of the map.

24970    ◆         planar array       ◆         a group of ultrasonic transducers that are mounted onto a single sheet so that they will fit into the hull of a sonar-carrying vessel.

24971    ◆         PLANAR CHROMATOGRAPHY       ◆            평면 크로마토그래피 : 정시상은 평평한 판이나 종이의 구멍이고 이동상은 모세컬럼 작용 또는 중력의 영향에 의해 정지상을 통과하여 이동

24972    ◆         planar device      ◆         a device in which all the contacts to all the pn junctions terminate on the same geometric plane.

24973    ◆         planar diode      ◆         a diode constructed as a planar device.

24974    ◆         planar linkage    ◆         a linkage with motion restricted to only two dimensions.

24975    ◆         planar photodiode          ◆         a photodiode constructed as a planar device.

24976    ◆         planar transistor ◆         a transistor constructed as a planar device.

24977    ◆         plane lamina      ◆         any body whose mass is concentrated on a single plane; e.g., a flat plate.

24978    ◆         plane of departure          ◆         the plane containing the path of a projectile as it leaves the muzzle of a gun.

24979    ◆         plane of fire       ◆         the plane that contains a gun and its target; i.e., the vertical plane that contains the line of sight.

24980    ◆         plane of maximum shear stress    ◆            at a given point, either of the two orthogonal planes across which the shear stress is maximum at that point. They lie at 45° to the minimum and maximum principal stress axes and parallel to the intermediate principal stress axis.

24981    ◆         plane of yaw      ◆         a plane determined by the tangent to the projectile trajectory and the axis of the projectile.

24982    ◆         plane polarization           ◆         the process of affecting electromagnetic radiation so that the electric vectors of the waves are confined to a single plane.

24983    ◆         plane strain        ◆         a state of strain where there exists a direction in which no displacement occurs, and along which strain is independent of distance.

24984    ◆         plane stress        ◆         a state of stress where there exists a direction in which no displacement occurs, and along which stress is independent of distance.

24985    ◆         PLANE WAVE      ◆         평면파; 음파의 파면들이 서로 평행한 파

24986    ◆         planer   ◆         a mechanical plane; i.e., a power machine used to reduce and smooth the rough surface of wood or other materials.

24987    ◆         planer saw         ◆         a circular saw designed for cutting across wood grain.

24988    ◆         planet gear        ◆         any gearwheel whose axis describes a circular path around that of another wheel.

24989    ◆         planetary           ◆         of or relating to a planet gear train or similar mechanism.

24990    ◆         PLANETARY BOUNDARY LAYER     ◆            대기경계층,행성경계층

24991    ◆         planetary gear train         ◆         an assembly of meshed gears consisting of a central (or sun) gear, a coaxial internal or ring gear, and one or more intermediate pinions supported on a revolving carrier.

24992    ◆         planetary vorticity effect  ◆         the effect that differences in the earth's vorticity at various latitudes have on the relative vorticities of flows having a meridional element.

24993    ◆         planishing          ◆         the process of giving a smooth finish to metal surfaces by a rapid series of overlapping, light hammerlike blows, or by rolling in a planishing mill.

24994    ◆         Plankton            ◆         Tiny plants and animals that live in water.

24995    ◆         PLANNED REUSE ◆         계획 재사용; 재생된 폐수를 일정한 계획하에 직접 혹은 간접으로 재사용하는 과정

24996    ◆         plant     ◆         the manner in which a geophone is placed on or in the earth.

24997    ◆         PLANT COMMUNITY       ◆         식물군집; 특정서직지 혹은 환경에서 공존하고 있는 식물군락

24998    ◆         plant growth substance   ◆         an organic regulatory substance that at low concentrations promotes, inhibits, or alters plant growth. Also, plant growth regulator.

24999    ◆         PLANT HYDRAULICS        ◆         처리장 수리; 공정 유량 흐름도를 선택하고 이에 해당하는 물리적 시설의 크기를 결정한 다음, 평균 및 첨두유량에 괸한 수리학적 계산과 종단면도를 작성하는 것

25000    ◆         PLANT LAYOUT   ◆         처리장 배치; 주어진 처리목표를 달성하기 위해 필요한 시설물의 공간적 배열을 뜻함