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坑探工程是地质普查勘探不可缺少的手段之一。它能使地质人员对地质构造和矿产埋藏情况进行观察与研究，并对钻探和物化探工作进行必要的验证，有的矿种必须经过坑探才能确定储量。多年来，我地质系统坑探工作比较落后，为了改变这一现状，加快勘探步伐，应尽快实现坑探机械化。本辑发表了三篇坑探工程方面的文章，供读者参考。
Pit exploration project is one of the indispensable tools for geological survey and exploration. It enables geologists to observe and study the geological formations and the burial of mineral deposits. The drilling and geophysical and geochemical exploration work is verified as necessary, and some minerals must be pitched to determine reserves. For many years, the pit exploration work in our geological system has lagged behind. In order to change this situation and speed up exploration, mechanization of pit exploration should be realized as soon as possible. This series published three articles in pit exploration project, for readers reference.