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一款DC6V镇流器.供电是蓄电池.现在有个问题.在电池快没电的时候,灯管一头就容易黑.大家帮忙分析一下.该怎么改进好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/76/754551240547746.gif');}" onmousewheel="return imgzoom(this);">
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