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焊機(jī)有些年頭了,說明書不見了,電壓正常,整流后550V,應(yīng)該不是電源問題在另外場(chǎng)合問題是一樣的.

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佳士的好,漂亮耐用[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259032568.gif');}"onmousewheel="returnimgzoom(this);">

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我們檢查四個(gè)電容充放電正常[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259032071.jpg');}"onmousewheel="returnimgzoom(this);">

[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091258944516.jpg');}"onmousewheel="returnimgzoom(this);">

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