bench mining

网络释义

1.	阶梯式开采地质专业词汇A-B ... bench mark 水准点 bench mining 阶梯式开采 bench placer 阶地砂矿 ... www.for68.com
2.	阶段开采 B ... bench lamp 台灯 bench mining 阶段开采，梯段开采 bench placer 阶地砂矿 ... course.cug.edu.cn
3.	梯段开采 B ... bench lamp 台灯 bench mining 阶段开采，梯段开采 bench placer 阶地砂矿 ... course.cug.edu.cn