Hydraulic Roofbolter is the key equipment for Ground Anchorage Engineering, and has very important affection to the quality of the engineering.
液压
杆钻机是
固工程的关键设备，对工程质量有重要影响。
杆钻机Hydraulic Roofbolter is the key equipment for Ground Anchorage Engineering, and has very important affection to the quality of the engineering.
液压杆钻机是固工程的关键设备，对工程质量有重要影响。
声
：以上例句、词性
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