- electric hand drill for coal
- eletric coal drill
- eletriccoaldrill
- hand drill
- 煤: coal
- 电钻: electrodrill; electric drill ...
- 电钻: [机械工程] electrodrill; electric drill; electrical drill◇电钻机 electrical drilling machine; 电钻具 electrodrill
- 掘煤电铲: coal shovel
- 冷煤电磁阀: refrigerate solenoid valve
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