- hard-rock driller
- 硬: hard; stiff; tough
- 岩: rock
- 硬岩钻进: hard drilling; hard-rock boring; hard-rock drilling
- 钻工: borer; drill hand; drill runner; driller; drilling machine operator; drilling-machine operator; floor man (roughneck); rig hands; yellow hammer
- 硬岩: hard rock; hard stone; hardrock
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