铁扼发热
变压器铁扼焊接,空载时发热快.取下后重新焊接,故障排出.不明原因,请教高手?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/64/1329331209447848.gif');}" onmousewheel="return imgzoom(this);">