main-deck主甲板
main span deck unit主跨部分桥身组件
Main Armored Deck主装甲甲板
main trailer deck主拖甲板
main viewing deck主观景台
main chain deck主甲板
main-deck stringer主甲板边板
main vehicle deck主车辆甲板
main cloud deck主云盖
N(名词) the uppermost sheltered deck that runs the entire length of a vessel 主甲板; 贯穿船身的最高处的受遮护甲板