coal drill

 
  • 煤钻

coal drill的用法和样例:

例句

  1. For coring crowns,electric coal drill bits,coal cutting picks,cone drill bits and scraping knife bitts,used in geological prospecting,coal mining and oil well boring.
    适用于地质勘探、取心钻头、电煤钻、截煤机齿、石油牙轮钻和刮刀钻头。
  2. The coal seam hydraulic drill can replace coal electric drill,of coal seam composed of this gear motor will replace electric coal drill,and will be widely used for drilling of coal face.
    以乳化液为工作介质的煤层液压钻可取代煤电钻,广泛用于采煤工作面的煤壁钻孔工作。
  3. Electrical Coal Drill Earth Leakage Protection Design Method
    基于单片机的煤电钻漏电保护设计
  4. New electric leakage protection device of electric coal drill
    一种新型的煤电钻漏电保护装置
  5. Keywords wind coal drill;bursting tager;function effect;
    风煤钻;突出层;作用效果;
  6. The hydraulic coal driller overcomes the weakness of the coal electric driller,it depends on the motive sources of the emulsification liquid pump station of hydraulic prop and turns the hydr...
    液压煤钻克服了煤电钻的缺点,它以液压支柱的乳化液泵站为动力源,将液压能以输出转矩的方式转化为机械能,实施钻孔,有小部分乳化液经空心钻杆到钻头,实现湿式打眼,降低粉尘浓度,改善工作环境。
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