爱词霸英语   汉语   手机版   软件版下载 | English
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1.The act of arranging with intervening spaces.
留间隔进行间隔安排的行为收藏指正
2.The Shrinkage-breasting method with artificial spacing pillars constructed and its application to the mining of dip and medium thickness orebody
间隔人工间柱留矿全面采矿法在倾斜中厚金矿体的应用收藏指正
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