The characteristics of several different linear motors have been investigated, and the feed drive system with linear mot......

与普通的旋转式压缩机相比,线性压缩机的性能很大程度上取决于线性电动机的性能。因此,对于长期运行在苛刻条件下的压缩机,就要求......

本文介绍了中凸变椭圆活塞型面的数控加工系统及常用的几种实现方式，并对几种方式进行了比较，阐明了该项技术的发展方向。文中涉及了......

介绍了美国下一代航空母舰用电磁弹射器的简单发展史。为了适应弹射无人飞机和舰载飞机的需求，必须发展电磁弹射器取代蒸汽弹射器。......

Obtaining petroleum at the cost of electrical energy is a common problem in almost all oil fields, and it is mainly caus......