A miniaturized circulator using barium ferrite films with a coplanar waveguide (CPW) structure is designed and optimized......

目前电力系统面临着竞价上网的激烈竞争，降低厂用电率，合理调配设备运行方式是每个电力企业急需解决的问题。循环泵是用电量较大的辅......