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- 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。
- 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。
- Electrical Coal Drill Earth Leakage Protection Design Method 基于单片机的煤电钻漏电保护设计
- New electric leakage protection device of electric coal drill 一种新型的煤电钻漏电保护装置
- Keywords wind coal drill;bursting tager;function effect; 风煤钻;突出层;作用效果;
- 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。
- Problems and Countermeasures of Electric Coal Drill Comprehensive Device 煤电钻综合装置的问题及对策
- New - style quick interruption versatile protector of electric coal drill 新型快速断电煤电钻综合保护装置
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- Development of comprehensive protective device of electric coal drill motor 煤电钻电动机综合保护装置的研制
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- Keywords water prospecting and drainage;electric coal drill;goaf water ponding; 探放水;煤电钻;采空区积水;
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- We have enough coal to see the winter out. 我们有足够的煤过冬。
- They eked out their coal by collecting firewood. 他们拣拾木柴以补充煤的不足。
- We had a big delivery of coal today. 今天我们收到大批订购的煤。
