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2017-10-31View Original

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Reply #22017-10-31
"text": "12277年 ÷ �÷ �è31ì号填空题,,回复返得6分(发帖÷天后回复不评分,谢谢回复",
Reply #32017-10-31
"text": "本帖最后由 绿莲花 于于 ÷ �÷ �è3÷ ÷ �÷ �è4 编辑 常减压加热炉点油火时,应先脱净( )管内存水 " � " �然�预热火嘴。并吹扫油火嘴,注意吹扫蒸汽量不可太大 " "扫通后 " "关严扫线阀。",
Reply #42017-10-31
"text": "常减压加热炉点油火时 " "应先脱净 ( 雾化蒸汽 " " " "管内存水 " "然后预热火嘴。并吹扫油火嘴 " "注意吹扫蒸汽量不可太大 " "扫通后 " "关严扫线阀。",

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