According to Annex Ⅳ of comminuted and disinfected sewage using an approved system can be discharged when the ship is more than away from the nearest land() ["3 n mile","5 n mile","12 n mile","25 n mile"]
CRH2A司机室侧门检查时应确认司机室门、()、合页、气密橡胶、()等外观没有损伤且安装状态良好,闭合车门,气密橡胶不得有()现象。
“1+1+N”维护模式中的第一个“1”指的是谁()。
“1+1+N”维护模式中的第二个“1”指的是谁()。
According to Anneal I of MARPOL 73/78, the discharging oil content of the machinery space bilges must be lower than() ["30 liters per nautical mile","15 liters per nautical mile","30 ppm","15 ppm"]
CRH2型动车组受电弓升弓气囊须无破损现象,裂纹深度(),长度()。