It may also be used for dispersing the build-up of drilled solids in the bit and also to disperse a build - up of solids in diamond drill rods.
也可用于分散钻头内部的钻井固体物以及分散金刚石钻杆内部固体。
The invention relates to welding and overlaying and can be used for recovering worn-out parts of pieces like solids of revolution, in particular drill pipes.
本发明涉及焊接和堆焊，还可以用于修复回转体类型件，特别是钻杆的磨损部分。
Under normal circumstances, Drifting in the rock face of the gushing water, in the concentration of multiple drill rock drill before the solids content of at least.
一般情况下，在岩石平巷掘进工作面的涌水中，在多台凿岩机集中打眼之前，固体颗粒含量最少。
Under normal circumstances, Drifting in the rock face of the gushing water, in the concentration of multiple drill rock drill before the solids content of at least.
一般情况下，在岩石平巷掘进工作面的涌水中，在多台凿岩机集中打眼之前，固体颗粒含量最少。
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