The most serious potential natural disasters in New Zealand are()
A、storms and earthquakes
B、volcanoes and floods
C、earthquakes and volcanoes
D、floods and storms
A、storms and earthquakes
B、volcanoes and floods
C、earthquakes and volcanoes
D、floods and storms
A、causes colloid suspension in the cooling water B、reduces the capability of the lubrication system C、can form pockets which block the flow of coolant through the system D、leads to the scuffing of cylinder walls
A、increase the trim B、change the free surface effect C、cause a serious list D、decrease ship stability
A、Mobile Satellite Information B、Motor ship Identification C、Most Serious Information D、Maritime Safety Information
A、increase the trim B、increase ship stability C、cause a serious list D、decrease the heeling moment