| 词汇 | piston |
| 释义 | piston noun[ C ] uk /ˈpɪs.tən/ us /ˈpɪs.tən/ a short, solid piece of metal that moves up and down inside a cylinder in an engine to press the fuel into a small space and to send the power produced by it to the wheels（发动机）活塞 JazzIRT/E+/GettyImages The engine & engine parts air filter alternator anti-roll biting point brake cam carburation carburettor disc brake distributor exhaust pipe internal combustion engine manual transmission muffler neutral suspension tailpipe tappet unbraked water-cooled piston | American Dictionarypiston noun[ C ] us/ˈpɪs·tən/ an engine part, usually a short, solid tube or round, flat object, which moves up and down or forward and backward inside a cylinder, and causes other parts of an engine or machine to move Examples of pistonpiston The role of flowcontrol valve and quick exhaust valve are to control the speed of piston. The piston of linear cylinder normally operates in the forward and backward direction with two-control position valves. The resonant frequency of each mode can be separately adjusted by means of two piston tuners. This is because we feel that the oscillating piston problem, although interesting, lacks direct practical application. Consumers consistently endorsed large-capacity double-action piston machines that were sturdy, hand-powered, labour-intensive, and mechanically reliable. This paper describes a theory for a piston-operated compressor in which shock waves are used to heat the gas being compressed. A rather dynamic plasma channel is formed under the compression by a magnetic piston in the fast capillary discharge channel. However, the pressure acting on the front face depends on the motion of the piston and on the compression waves generated by it. With sufficient separation, when the shock front is in radial motion, the magnetic piston is still moving axially. The stroke of the actuators has been limited to 80% of the total length of the piston. The rubber shock absorber located at the bottom of the outlet section is designed to cancel the residual speed of the piston. The contact boundary of gases was accelerated by means of a compression wave, which was generated by an accelerating piston. The present treatment removes the restriction of isentropic flows, extending the applicability of piston theory to flows with strong shocks. The waves propagating from an oscillating plane piston into a vibrationally relaxing gas are calculated by an exact numerical method ignoring viscosity and heat conduction. At the same time, a special device braked the piston and the gas flow was cut off from the ampoule. 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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