A、through a detachable hose connection
B、after passing through an activated charcoal filter
C、after chemical analysis shows it is fit for consumption
D、through a solenoid operated three-way valve
A、through a detachable hose connection
B、after passing through an activated charcoal filter
C、after chemical analysis shows it is fit for consumption
D、through a solenoid operated three-way valve
时间:2022-01-03 02:53 关键词: 船舶辅助机械 水路交通运输技能考试 海船船员考试