用矿井罗盘确定沉井、平硐或矿脉倾向的操作。
用矿井罗盘确定沉井、平硐或矿脉倾向的操作。；【植物】李属(Prunus)植物；洋李；李；梅
用矿井罗盘确定沉井、平硐或矿脉倾向的操作。
The operation of finding, by means of a mine dial (compass), the place where to sink an air shaft, or to bring an adit to the work, or to find which way the lode inclines.
印刷品上李子色的失真。
A plum-colored distortion of prints.
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