按要求船舶的通风设备，必须装有()。

The risk of collision shall be deemed to exist if the compass bearing of an approaching vessel ().

If a diesel engine turned over freely but failed to start, the cause could be ________.

An increase in the fuel injection pump discharge pressure can be caused by a/an _______.

某水泵运行时进口压力为0.05Mpa，排出口压力为0.25Mpa，则水泵的压头为______。

The Ship Security Plan should be submitted to____ for approval.