Traditional activecurrent sharing method needs massive storage space for calculating the reference current and increases the system communication load.
传统的有源均流法在计算参考电流时需要占用大量的存储空间，且增大了系统的通信负担。
2
This variable lets you specify the currentactive instance to which all commands would apply.
通过这个变量，可以指定当前活动实例，所有命令将应用到此实例。
3
"Text string to the active document at the current cursor location."