500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/29/1115863515.gif');}" onmousewheel="return imgzoom(this);">请指教如何让两只可控硅交替工作,电压是600v,频率是25-200hz,小弟在此谢谢各位了.请高手帮忙
500) {this.resized=true; this.width=500; this.alt='这是一张缩略图，点击可放大。\n按住CTRL，滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/29/1115863515.gif');}" onmousewheel="return imgzoom(this);">请指教如何让两只可控硅交替工作,电压是600v,频率是25-200hz,小弟在此谢谢各位了.