By introducing origins and characteristics of the horizontal shaft and its application in the development of salty minerals, show the board prospects for the horizontal shaft.
通过对水平井的工艺特点以及在盐类矿物开采中的应用的介绍，阐述了水平井广阔的发展前景。
By introducing origins and characteristics of the horizontal shaft and its application in the development of salty minerals, show the board prospects for the horizontal shaft.
通过对水平井的工艺特点以及在盐类矿物开采中的应用的介绍，阐述了水平井广阔的发展前景。
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