It is a light, full hydraulic core drill rig.
这是一个轻，全液压钻机的核心。
No other drill rig in this class is so light and portable.
在同级别产品中没有任何钻机能与它一样体轻、便携。
This article is about a kind of mechanical-electric compound drive drill rig.
介绍了一种机电复合驱动石油钻机。
This article is about a kind of mechanical-electric compound drive drill rig.
介绍了一种机电复合驱动石油钻机。
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