而且气门头部容易被经过的高温气体烧蚀，活塞顶部也可能会碰到气门使发动机严重损坏。

Also the valve heads will be liable to be burnt by the passing hot gases, and there is the likelihood of the piston crown touching an open valve, which can seriously damage the engine.

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此外气门头易于被通过的热气体燃烧，这有可能使活塞频繁冲击打开的气门，使发动机严重损坏。

Also the valve heads will be liable to be burnt by the passing hot gases, and there is the likelihood of the piston crown touching an open valve, which can seriously damage the engine.

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事实上液压节气门减慢了驱动器的速度以防止损坏。

There is in fact so much speed in the actuator that hydraulic restrictors are used to slow it down and prevent damage.

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检查进[排气门和气门座圈是否磨损或损坏；

Check into[whether friendly mount circle in the thumb latch in the air dishcarge thumb latch abrades or damages;

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检查进[排气门和气门座圈是否磨损或损坏；

Check into[whether friendly mount circle in the thumb latch in the air dishcarge thumb latch abrades or damages;

youdao