机械和电气零件，发动机架，以及其他汽车机罩下零件。
Mechanical and electrical parts, engine mounts and other under-the-hood automotive parts.
研究表明，涡轮泵不对称以及发动机与机架之间连接刚度弱是引起推力偏心和基频固有频率偏低的主要原因。
It is shown that the offset of propulsion force and the lower natural fundamental frequency are caused by asymmetry of turbopump and weakness of connection stiffness between propulsion and frame.
工作时操作者把背负机架和发动机背在背上，手握套管收割稻麦等作物。
While operating, the operator carries the back-carrying machine frame and the motor on the back, and holds the sleeve pipe by hand to harvest crops, such as wheat, rice, etc.
在拱桥式机架上面固定有发动机、与发动机相连的传动系统；
A wheel-type travel system is fixed below the arch-bridge-type stand;
在拱桥式机架上面固定有发动机、与发动机相连的传动系统；
A wheel-type travel system is fixed below the arch-bridge-type stand;
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