问题
-
We use _____ to distill fresh water from sea water.
-
With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pump
-
The weight of the liquid displaced by a vessel floating in sea water is equal to the ().A.
-
______ is used to prevent the entry of sea water to the machinery space.A.A special sealin
-
At sea, we usually use() to provide hot water.A.a heaterB.an exhaust gas boilerC.an engin
-
If a seaplane is not used as a means of transpiration on water but is capable of being use
冀公网安备 13070302000102号