文中针对选煤厂磁选机喷淋水手动控制存在自动化程度低、影响磁选机工作效率以及存在一定水资源浪费等问题，对喷淋水控制系统进行自......

In order to combine the advantages of high thermal efficiency of diesel engine and high power density of gas turbine,a n......

An electro-hydraulic steering controller was developed based on Dongfanghong-X804 tractor to realize autonomous navigati......

介绍传统燃气比例阀和零压阀的控制原理。以VGU82燃气比例阀为例,探讨该燃气比例阀的结构和功能及工作原理,分析了该燃气比例阀在......