scupper and sanitary overboard discharges的意思|示意
美 / /
英 / /
排水管和卫生舷外排放
scupper and sanitary overboard discharges的网络常见释义
甲板水舷外排水口 ... scumming 除去浮渣去泡沫 scupper and sanitary overboard discharges 甲板水舷外排水口 scupper grating 排水孔格栅 ...