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A sharp-pointed, thin metal rod about 1 to 2 ft (0.3 to 0.6 m) long with a ring at the other end, used in surveying; a thin metal peg.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- ed.young
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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
