overcastadj.阴天的;阴暗的;愁闷的v.遮盖;(使)变暗;包边缝n.覆盖;阴天
overbearv.威压;压服;超过
overboarded落海
overboarddumpn.卸载
overboard dumpn.卸载
overboard valve排出机外活门
overboard drain机外排放
overboard falls横桁滑车组
overboard-dumpn.卸载
overboard scupper舷外排水孔
overboard discharge排出机外
overboard connection舷外接头