结果表明,只要台阶高度选择得合适,可使阶梯型活塞环的承载能力在整个磨损寿命阶段内都大于桶面活塞环的承载能力。
It is indicated that if the shoulder height of the stepped cross section piston ring is properly selected, its bearing capacity may be greater than that of the cir...
这款桌子有几种不同的高度供选择。
食品选择对价格上涨高度敏感。
Okay, you can kick up and down, that's true. Okay, that's true actually, that's true.
你可以选择罚球的高度,这一点很对,很有道路
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