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声频钻进
释义
声频钻进
Encyclopedia
理学
钻进方法
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Sonic Vibration drilling
声频钻进
以振动频率为50~200赫兹的高频振动为动力的钻进方法。又称声频振动钻进、声波钻进。
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Product Quality Law of the People's Republic of China
product quality supervision
Product recall
product recall insurance
product recall system
Product Research and Development
product rule
product sales rate
product sample book
product's angular distribution
product scheme
Product Semantics
product semantics
product's energy distribution
product seriation
product series
product service
product-service community
product service system
product-service system
product set
product sign
product singular value decomposition
products of blast furnace ironmaking
products of comprehensive planning
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