A neutral equilibrim position for a vessel means that the metacenter is().
A、lower than the keel
B、at the same height as the center of gravity
C、exactly at midships
D、at the center of the waterplane area
A、lower than the keel
B、at the same height as the center of gravity
C、exactly at midships
D、at the center of the waterplane area
A、impartial neutrality B、partial neutrality C、firm support of the Allies D、Pro-Ally partial neutrality
A、set Negative Button() B、set Neutral Button() C、set Positive Button() D、set Neutraled Button()
A、removing heat and deposits B、neutralizing acidic products C、lubricating D、improving combustion efficiency