In this article, the author probes into Chinese present coal energy situation, production, and conveying method of coal so that to affirm that using self-moving system can greatly improve coal output.
对中国目前煤炭能源状况、生产、运输方式进行了探讨，从而肯定了利用自移系统极大提高煤炭产量的模式。
This paper discusses the mechanism of self driving vibration in the machine tool feeding system. The moving parts with lower speed lead to the crawling phenomenon.
讨论了机床进给系统中因运动部件移动速度较低，因而产生爬行现象的自激振动机理。
The genesis of cold pool in moving-out Southwest Vortex, north-trough with south -vortex, self-organizing, and non-organizing local system types results in a high momentum difference in the low-level.
在西南涡移出型、北槽南涡型、自组织型、非组织局地类型中，冷池的形成导致出现了低层的高动量偏差；
应用推荐