()generally indicates that a gale or storm is approaching.
A、A.Falling barometric pressure
B、B.Rising barometric pressure
C、C.The circulations of winds
D、D.The change of wind direction
A、A.Falling barometric pressure
B、B.Rising barometric pressure
C、C.The circulations of winds
D、D.The change of wind direction
A、compression pressure B、lube oil header pressure C、scavenge air pressure D、piston ring blow-by
A、A.worn connecting rod bearings B、B.worn engine cylinder liners C、C.high cylinder firing pressure D、D.stuck spring-loaded manhole covers
A、urgency or an emergency B、the vessel's national identity signal C、a group from the general signal code D、a group from the medical signal code
A、General cargoes are neither liquid nor solid bulk cargo B、General cargoes are packaged hazardous cargoes C、General cargoes are also called breakbulk cargoes D、General cargoes are mostly carried on container ships now
A、A.high pressure liquid line B、B.low pressure liquid line C、C.high pressure vapor line D、D.low pressure vapor line