ball plunger

基本解释

• 定位球塞

英汉例句

雙語例句

• Ball plungers;
  球頭柱塞；
• Moreover, the ball plungers (6) are positioned near the piston top dead center, at which the piston ring is positioned.
  另外，球塞（6）設置在靠近活塞上死點的活塞環所在的部位。
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