Punching process is a high production efficiency, no or less process methods, in the economic and technical aspects which has many advantages.

冲压工艺是一种生产效率很高的、少切屑或无切屑的先进加工方法，在经济和技术方面都有很多的优点。

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Take new built mine seam for example, expound the advantages of leaving roadway fashion of concrete coal refuse cinder cement stone wall, and make analysis of technical economic.

以典型的新建煤矿煤层为例，阐述采用水泥煤矸碴胶泥砌筑石墙留巷方式的优点，并进行技术经济分析。

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Large and medium diaphragm and measuring contact, jam, easy cleaning, further play a ceramic sensors, corrosion resistance and good technical characteristics of economic advantages.

且测量膜片与介质大面积接触，不易堵塞，便于清洗，进一步发挥了陶瓷传感器抗腐蚀性能好的技术特点和较经济的优势。

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