44. 船舶二重底艙(Double Bottom Tank)內的橫向構件為: (A)角牽板(Gusset Plate) (B)主肋骨(Main Frame) (C)底肋板(Floor) (D)舭緣板(Margin Plate)

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統計: A(4), B(5), C(26), D(4), E(0) #547664