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1.In machinery spaces situated at the aft end，such engine seating girders are to be carried as far as practicable and the ends effectively supported by web frames or transverse.
例3:对尾机型船舶，此种机座纵桁应尽可能地向尾延伸，且其端部应由强肋骨或实肋板支持。收藏指正
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