- citylot drilling
- 城区: the city proper; metropolita ...
- 钻进: worm one's way in; drilling
- 城区钻探: town-lot drilling
- 城区: the city proper; metropolitan area; urban area 城区和郊区 the city proper and the suburbs; 城区电力网 city network; 城区电力系统 city network; 城区网路 city network
- 钻进: worm one's way [oneself] in [into]; drilling◇钻进参数 drilling parameter; 钻进速度 drilling rate
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