홈 > Term: solid bituminous material
solid bituminous material
Material having a penetration at 77 degrees F (25 degrees C), under a load of 100 g applied for 5 to 10 s.
- 품사: noun
- 분야/도메인: 광업
- 카테고리: 일반 광산; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
