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foxman:看你是怎样的嵌入到金属板? 只要辐射面不被遮蔽,"腔"这个结构观念是你要参透的。(无论材料或是空气所造成的空间皆可称之为-腔) $AHQmyg< (2016-01-14 08:49) (XoH,K?{z
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