短语词组短語Thickness of bulkhead plating 艙壁板之厚度sloped bulkhead plating 斜形艙壁板;斜頂板鋪板corrugated bulkhead plating 槽型艙壁longitudinal bulkhead plating 縱艙壁板bottom plating of bulkhead 艙壁下列板 返回 bulkhead plate