在长期使用过程中，动力传输系统零件的磨损可导致链条张力的降低。
In the long-term use process, the attrition of dynamic transfer system components may cause the chain tension's reduction.
因此，对燃料电池电动车动力传输系统的结构、工作原理以及其性能对整车各方面性能的影响的研究有着十分重要的意义。
Therefore, it is very important to us to make a deep research about the structure and working principle of powertrain and how its performance will affect the vehicle performance.
气垫船动力装置由如下各部分组成：主机，功率传输装置，推进器，主推进器舵组合装置，垫升装置以及为动力装置服务的系统和装置。
Hovercraft is a kind of high-powered watercraft. the propulsion system of hovercraft concludes mainframe power transfer device thruster air propeller installation and assistant system.
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