诊断和分析工具提供经济数据和报告的基础上的机械状况，性能和振动的工业往复发动机，压缩机，和旋转设备。
Diagnostic and analysis tools provide economic data and reports based on the mechanical condition, performance and vibration of industrial reciprocating engines, compressors, and rotating equipment.
曲轴，也叫做发动机的“脊柱”，其作用是将活塞的上下往复运动转换成为旋转运动，并且控制着整个的功率输出。
The crankshaft, regarded as the "backbone" of the engine, serves to change the reciprocating motion of the piston into rotary motion and handles the entire power output.
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.
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