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红外对射烟感的英文为什么是FXG?求大神指教

今天在看图纸的时候发现红外对射英文是用FXG标识的,但之前干的时候使用CS标识的(如CAD图),这两个是怎么标的呢,有木有大佬知道

楚晨鑫185 | 2023-08-27 22:12
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