电动多叶排烟口、电动加压送风口留洞尺寸需考虑执行机构 [课程编码3174]

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墙上安装的电动多叶排烟口、常闭电动加压送风口，留洞尺寸需要考虑执行机构（一般有执行机构的一侧要扩大250mm）bwwwqdyrbvoaxworcjsfqh
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