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。

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.

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气门杆上的弹簧使气门保持在气门座上(关闭状态)。

A spring on the valve stem tends to hold the valve on its seat (closed).

youdao

气门杆上的弹簧使气门保持在气门座上(关闭状态)。

A spring on the valve stem tends to hold the valve on its seat (closed).

youdao