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- Pneumatic hammer drilling technology with low wob,low rate of revolution and high capacity to break rock is one of the best effective methods to solve the problems of hard rock drilling. 空气锤钻井是一种低钻压、低转速、高冲击破岩回转钻进技术,它兼容了气体钻井和冲击回转钻井的优势,其机械钻速一般比回转钻井高,是当今解决硬岩钻井难题的一种有效方法。
- Lately they have been getting into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Inserted diamond bit applied to hard rock drilling in Xinji Mining Area 孕镶金刚石钻头在新集矿区坚硬岩层钻进中的应用
- Under the crust are many layers of hard rock. 在地壳的下面是许许多多坚硬的岩石层。
- Hard rock is the real cultural revolution. 摇滚是一场真正的文化大革命。
- The rock drill is indispensable for digging coal mines. 凿岩机是煤炭采掘不可缺少的工具。
- Lately they have is get into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Lately they've been getting into hard rock. 近来他们一直热衷于演奏硬派摇滚。
- Tina: What about hard rock songs? 蒂娜：那么摇滚乐歌曲呢?
- You ever heard of a hasidic jew into hard rock? |你听说过哈西德派犹太人从事硬摇滚吗?
- If they knew how difficult it was to drill through the hard rock, they would lose heart. 如果他们知道了钻透那坚硬的岩石有多么困难,他们会丧失信心的。
- Until recently, scientists havebeenunable to devise a drill which would be capable of cutting through hard rock at greatdepths. 直至今日,科学家尚未能设计出一种能钻透极深处坚硬岩石之钻探机。
- She made herself as comfortable as the hard rock permitted. 她在坚硬的岩石上尽可能坐得舒服些。
- Application of Rotary Rig in Hard Rock Drilling for Foundation Project of One Power Station 旋挖钻机在某电厂桩基工程硬岩地层中的应用
- The boy has been chipping away at that hard rock for four hours. 那小伙子凿削岩石已经四个小时了。
- Mini rock drill has been produced based on patented technology for rock drill warm extrusion. 采用钎头壳体温挤压精密成形专利技术生产了小型凿岩钎头。
- Products:Air compressor, Genset, Concrete Mixer, Concrete Mixing Plant, Rock Drill For Mining. 产品：空压机，发电机，混凝土搅拌机，搅拌站，搅拌车和钻具
- In the 1970s, groups played hard rock and punk music, instead. 而到了70年代，乐队开始演奏重金属和朋克音乐。
- Fax:0769-22687018 Products:Air compressor, Genset, Concrete Mixer, Concrete Mixing Plant, Rock Drill For Mining. 产品：空压机，发电机，混凝土搅拌机，搅拌站，搅拌车和钻具
- Being ill for a week, he is much eager to play the hard rock. 病了一个礼拜后，他更想演奏摇滚乐了。
