triple seal piston ring 三重密封活塞环
piston seal 活塞密封 ; 活塞油封 ; 活塞密封圈 ; 活塞密封件
piston ring seal 胀圈密封
DUST SEAL FOR PISTON 活塞防尘罩
flexible seal piston-type gasholder 柔膜密封干式储气罐
piston ring type seal 涨圈式密封
accumulator piston seal 蓄能器活塞密封
cylinder piston seal 油缸活塞密封
piston top seal 柱塞顶部密封
This means longer rod and piston seal life.
这意味着不再杆和活塞密封寿命。
Thin, circular, steel bands fit into grooves around the piston to seal the bottom of the combustion chamber.
把薄的，圆形的，钢圈放进活塞周围的凹槽以密封燃烧室的底部。
Such as whether the bolt is tightened, the piston ring is installed correctly, damaged oil seal is replaced, etc.
譬如螺栓是否拧紧，活塞环安装是否正确，损坏油封是否更换等。
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