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裸眼井 | |||
裸眼 | |||
裸井; 无井管孔; 安装孔 | |||
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空心; 裸井; 安装孔 | |||
空心的 | |||
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安装孔 |
open hole : 79 phrases in 12 subjects |
Automobiles | 1 |
Chemistry | 1 |
Drilling | 17 |
Earth sciences | 4 |
Engineering geology | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
Geophysics | 5 |
Mining | 2 |
Oil / petroleum | 32 |
Plastics | 1 |
Space | 1 |
Technology | 11 |