underwater rock drill是什么意思

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用法例句

The significance of water-powered rockdrill for energy-saving and ensuring operator's heath are expounded, and its vast potential markets in developing countries are analysed.

阐述了水压凿岩机对节约能源、保护操作工人健康的重要意义 ,以及在广大发展中国家潜在的巨大市场 ;论述了水压凿岩技术在深井开采中的工作原理 ;介绍了国内外水压凿岩机研究的进展和现状 ,以及与气动凿岩机的对比试验情况、存在的主要问题。

The importance of developing Jackleg hydraulic drill is introduced,and the development situation, design features and application results of it are discussed also.

论述了发展支腿式水压凿岩机的重要性及其发展概况、结构特点、应用效

Some development achievements and application of hydraulic drill at home and abroad are introduced.

介绍了水压凿岩机技术在国内、外的发展及应用现状,并从水压凿岩机工作介质及其特定工作环境出发,阐述了国内水压凿岩机应用技术所面临的主要问题。