overboard toilet drain line的意思|示意

舷外〓洗放泄管路 ... overboard toilet drain line 舷外〓洗放泄管路 overboard toilet drain line 舷外盥洗放泄管路 overboard toilet drain line 盥洗污水舷外泄管 ...

盥洗污水舷外泄管 ... overboard toilet drain line 舷外盥洗放泄管路 overboard toilet drain line 盥洗污水舷外泄管 overboard urinal drain line 小便池舷外疏泄管 ...