这一机构有一系列部件组成，如曲柄箱、气缸体、活塞、连杆、曲轴等。
The mechanism consists of several parts like crankcase, cylinder block, pistons, connecting rod, crankshaft, etc.
往复式压缩机使用的是活塞、曲柄、连杆机构或活塞、曲柄、滑管机构，旋转式压缩机使用的是转轴曲轴机构。
Reciprocating compressors is using the piston, the crank, link mechanism or the piston, the crank, sliding tube institutions, rotary compressor rotor is the use of crankshaft institutions.
分析了以曲柄滑块机构和凸轮机构为主动的二自由度机构成型活塞中凸变椭圆的工作原理。
The working principle was analyzed for the middle-bulged varying ellipse shape of the two-freedom mechanism with the crank sliding-block mechanism and the cam mechanism.
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