图纸中标注出门板、横梁、纵梁、调头、滑块座等的尺寸，标明横梁、纵梁、小横梁的结构等。
Drawings marked out board, beams, stringers, turn around, slide blocks and other dimensions, indicating the beams, stringers, small beam structure.
图纸中标注出门板、横梁、纵梁、调头、滑块座等的尺寸，标明横梁、纵梁、小横梁的结构等。
Drawings marked out board, beams, stringers, turn around, slide blocks and other dimensions, indicating the beams, stringers, small beam structure.
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