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head flat trimmer
In bituminous coal mining, a foreman who is in charge of workers picking impurities from coal as it is dumped into railroad cars at the mine surface.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
