Research & Development of drilling jumbo both at home and abroad have been described.
介绍了国内外凿岩台车的研发情况。
This text introduced the basic requestion of the hydraulic oil of drilling jumbo, and introduced the selection of hydraulic oil.
介绍了凿岩台车对液压油的基本要求，以及液压油的选用。
The implementation of accurate boom location of drilling Jumbo at the driving place is a key link to improve the drilling-blasting effects.
在掘进工作面上实现凿岩台车钻臂的准确定位是提高凿岩爆破效果的重要环节。
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