gas tight seal 中文意思是什麼
gas tight seal
解釋
氣密密封-
When the engine runs in compression stroke and power stroke, the valves must close tightly on their seats to produce a gas - tight seal and thus prevent the gases escaping from the combustion chamber
當發動機處于壓縮行程和做功行程時,閥門必須緊緊地關閉以產生一個不透氣的氣封,以防止氣體逃離燃燒室。
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