介绍了大型汽轮发电机组密封瓦振动的机理，经试验分析认为产生振动的原因是密封瓦碰磨、大轴晃度超标。
As a conclusion, the reasons of vibration are that the oil-seal ring create friction and axles flutter exceed standard.
确保你的瓦被水泥浆彻底填塞并密封了。
Make sure that your tiles are thoroughly grouted and sealed.
通过改善伤口绷带周围的密封性来减少空气泄漏，佐罗夫西克采用一种手摇抽气机，将抽气机对能量的需要从14瓦削减到80微瓦（1微瓦等于百万分之一瓦）。
By improving the seal around the wound dressing to reduce air leaks, Zurovcik cut the pump's power requirements from about 14 watts to 80 microwatts, which comes from a hand pump.
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