漏气率是磁流体真空动密封组件的关键技术指标。
The leak rate is the key specification of vacuum dynamic sealing with magnetic fluid.
油田压裂支撑剂（陶粒）的破碎率指标是关键技术指标。
The crushing rate index of oilfield fracturing proppant is one index of key technique.
介绍了可调脉宽YAG激光脱毛机的工作原理，整机结构和关键技术指标。
The essay expounds the operation principle of the instrument of alterable pulse width YAG Laser hair removal, the complete instrument structure and the key specification.
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