lower-deck beam下甲板梁
LOWER FORECASTLE DECK下层艏甲板
lower-deck stringer下甲板边板
lower tween deck下方中甲板;二层柜;下甲板间;下二层舱
lower r deck下甲板
LTD LOWER TWEEN DECK下二层柜
lower between deck下部中甲板
同义词：third deck
N（名词） the deck of a ship situated immediately above the hold 下甲板