单项选择题
A.total dissolved solids B.temperature of distillation of sea water C.total dissolved sodium D.total delivery system
A condenser is a vessel in which（） is deprived of its l...
单项选择题A condenser is a vessel in which（） is deprived of its latent heat of vaporization and so changed to its liquid state.
A.sea water B.fresh water C.vapour D.gas
In more recent years, （） heat exchangers have frequentl...
单项选择题In more recent years, （） heat exchangers have frequently been employed for jacket water and oil cooling.
A.shell and tube type B.plate type C.coil type D.conical disc type
To avoid impingement attack, care must be taken with th...
单项选择题To avoid impingement attack, care must be taken with the water （） through the tubes of the heat exchangers.
A.temperature B.velocity C.density D.viscosity
