poppet valve
短语[化] 提升阀; 菌状阀
词形变化
poppet valves
复数
poppet valves
释义与例句
n.
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1.
A valve (as in an internal combustion engine) which consists of a sliding shaft with a disk on the end (the disk being shaped to alternately plug and unplug a matching port). Such a valve is opened by either a cam or a solenoid and is closed by either a spring or a solenoid.
工程