| 单词 | piston |
| 释义 | piston noun[C] uk/ˈpɪs.tən/us/ˈpɪs.tən/ashort,solidpieceofmetalthatmovesup and down inside acylinderin anenginetopressthefuelinto asmallspaceand tosendthepowerproducedby it to thewheels （发动机）活塞 JazzIRT/E+/GettyImages The engine & engine parts
piston| American Dictionarypiston noun[C] us/ˈpɪs·tən/anenginepart, usually ashort,solidtubeor round,flatobject, whichmovesup and down orforwardandbackwardinside acylinder, andcausesotherpartsof anengineormachinetomove Examplesofpistonpiston The role of flowcontrol valve and quick exhaust valve are to control the speed ofpiston. From theCambridge English Corpus Thepistonof linear cylinder normally operates in the forward and backward direction with two-control position valves. From theCambridge English Corpus The resonant frequency of each mode can be separately adjusted by means of twopistontuners. From theCambridge English Corpus This is because we feel that the oscillatingpistonproblem, although interesting, lacks direct practical application. From theCambridge English Corpus Consumers consistently endorsed large-capacity double-actionpistonmachines that were sturdy, hand-powered, labour-intensive, and mechanically reliable. From theCambridge English Corpus This paper describes a theory for apiston-operated compressor in which shock waves are used to heat the gas being compressed. From theCambridge English Corpus A rather dynamic plasma channel is formed under the compression by a magneticpistonin the fast capillary discharge channel. From theCambridge English Corpus However, the pressure acting on the front face depends on the motion of thepistonand on the compression waves generated by it. From theCambridge English Corpus With sufficient separation, when the shock front is in radial motion, the magneticpistonis still moving axially. From theCambridge English Corpus The stroke of the actuators has been limited to 80% of the total length of thepiston. From theCambridge English Corpus The rubber shock absorber located at the bottom of the outlet section is designed to cancel the residual speed of thepiston. From theCambridge English Corpus The contact boundary of gases was accelerated by means of a compression wave, which was generated by an acceleratingpiston. From theCambridge English Corpus The present treatment removes the restriction of isentropic flows, extending the applicability ofpistontheory to flows with strong shocks. From theCambridge English Corpus The waves propagating from an oscillating planepistoninto a vibrationally relaxing gas are calculated by an exact numerical method ignoring viscosity and heat conduction. From theCambridge English Corpus At the same time, a special device braked thepistonand the gas flow was cut off from the ampoule. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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