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成品图纸>四层、双拼、200-300%25252525252525252525252525252525252525252525E3%252525252525252525252525252525252525252525258E%25252525252525252525252525252525252525252525A1、开间20m%25E4%25BB%25A5%25E4%25B8%258A、进深20m%252525252525E4%252525252525BB%252525252525A5%252525252525E4%252525252525B8%2525252525258A