shallow-cover and close-cut的意思|示意
美 / /
英 / /
浅覆盖，近切割
shallow-cover and close-cut的网络常见释义
浅埋暗挖 ... straight shallow cut 纵向薄切片 shallow open-cut surface mining 浅部露天开采 shallow-cover and close-cut 浅埋暗挖 ...