... 定（恒）量泵：Constant-displacement pump 活塞腔、活塞侧：head end of cylinder 转子式液压马达、回转式液压马达：Rotary abutment motor ...
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A spring on the valve stem tends to hold the valve on its seat (closed). The lower end of the spring rests against the cylinder head.
气门杆上的弹簧使气门保持在气门座上(关闭状态)。弹簧的下端抵在气缸盖上。
The lower end of the spring rests against the cylinder head.
弹簧的下端抵在气缸盖上。
Note that the rocker arm shaft supporting seat with upper oil hole is at front end of the rocker arm and this end should align with upper oil hole on cylinder head rocker arm shaft when assembling.
应注意，带上油孔的摇臂轴座是摇臂的前端，装配时应注意以这一端和缸盖摇臂轴上油孔对齐。
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