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).
气门提杆为液压式，气门间隙不是手动调节。
Valve for the hydraulic rod to mention, the automatic adjustment of valve clearance.
气门提杆为液压式，气门间隙不是手动调节。
Valve for the hydraulic rod to mention, the automatic adjustment of valve clearance.
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