The test results show that the better blasting effect and obvious technical and economic benefits in coal rock drivage can be acquired by means of the quasi-parallelcutting method.
实践表明，在煤矿岩巷掘进中使用准直眼掏槽方式，能够取得良好的爆破效果和显著的技术经济效益。
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But to the east, the rocks have buckled into a series of steep north-south ridges, cutting down through the heart of Yunnan, the parallel mountains of the Hengduan Shan.
The results show that this parallel manipulator has a large workspace, and no singularity in the useful workspace, so it is an ideal parallel manipulator for laser cutting.