This article introduced complete machine structure, design characteristics and work feature of the chipper with separation apparatus, analysed economic benefit that the chipper will be used.
介绍了带分离装置削片机的整机结构、设计特点和工作性能，并分析了采用该削片机所能产生的经济效益。
This article presents the combined mining technology of horizonal sectional light prop used in steeply inclined short_interval thick coal seams and gains the technical and economic benefits.
文章介绍了新疆乌鲁木齐矿业集团急倾斜近距离厚煤层水平分段轻型支架放顶煤联合开采技术及取得的技术经济效果。
The technology of applying converter to control sewage and air pump noise is introduced in this article. It's used to reduce noise and save power. The technology is practical and economic.
叙述了采用变频调速技术控制污水处理空气泵噪声的方法，既降噪，又节电，经济实用。
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