Water ballast tank

Water ballast tank septic tank water tank water transfer tank 是什么 PLATE OF WATER TANK 英语翻译可以直接：5L water tank potable water supply to expansion tank Tank concentration water storage tank 求翻译~什么储水箱? ballast意为压载物,Sub-ballast是什么意思? ballast capacitor是什么意思 ballast pump 是什么泵 请问electronic ballast是什么意思? Ballast Systems什么意思? Electronic Ballast 中文翻译? Ballast Systems什么意思 求翻译一句话In ballast the ships draw around 12 metres (39 ft) of water船舶方面的懂的人来翻译哦 You must fill the tank with suitable water 改为被动语态 It is not good to put onlt a little water in the fish tank