21、根据《72国际海上避碰规则》,互见中,三艘机动船两两航向交叉相互驶近构成碰撞危险的,则_( )__.

40、 If a buoy is not at the position charted, we say it is ( ) .

38、( ) - a plan which is mutually agreed between a VTS Authority and the master of a vessel concerning the movement of the vessel in a VTS area.

37、 The term "power-driven vessel" means any vessel ( ) by machinery.

36、 A is the process by which the position of the vessel at any moment is found by applying the last well-determined position to the run that has been made since, using for this purpose the ship’s course and the distance being those indicated by log.

35、( ) is a service to prevent the development of dangerous maritime traffic situations and to provide for the safe and efficient movement of vessel traffic within the VTS area.

34、( ) is a service to assist on-board navigational decision-making and to monitor its effects.

33、 When a wind is permanently changing the direction from which it blows, it is ( ).

32、 Place on deck, in mess rooms, etc., assigned to crew and passengers, where they have to meet according to the muster list when the corresponding alarm is released or announcement made means ( ). A. deck area B. dining room on board

29、 Attending a vessel, to be available in case of need( )is called ( ).

28、 To increase the distance to the vessel ahead by reducing one´s own speed is called ( ) .