superstructure n. (对下层基础而言的)上部建筑 (opp. substructure), (船舶的)上部构造,(对经济基础而言的)上层建筑。 the reaction of the superstructure on the economic base 上层建筑对于经济基础的反作用。 adj. -tural
This vessel is a steel shallow draft flushing dredger of all - welded construction , with single deck , single bottom , transverse framing , transom stern and continuous superstructure , and sledge - shape bow . it is operating on the huanghe river for flushing and suctioning silt and sand with the purpose of controlling the huanghe river tongguan section , dredging the waterway and reducing the flooding . main engine : nt855 - m270 本船为钢质全焊接结构浅吃水内河自航冲砂清淤工作船,具单甲板其中艉舵机舱首甲板为升高甲板,单底,横骨架式结构,方艉及连续上层建筑首部采用雪橇式线型。