water ballast
短语词组
- water -ballast roller 水鎮重路碾
- water r ballast 壓艙水
- water ballast space 壓載水艙
- water ballast capacity 壓載水艙容量
- Auxiliary water ballast tank 輔助壓載水艙
- water ballast hold 水壓艙
- water ballast chamber [船]底水艙
- water ballast pollution 壓載水汙染 返回 water ballast