你可能感興趣的試題

The water level of an exhaust gas boiler which is independent of the auxiliary boiler and just as the extra heating surface of it （）

A.will be modulated in proportion
B.will be modulated in proportion and integral
C.will be modulated in proportion and differential
D.will not be modulated at all

單項選擇題

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

A.the temperature and flow quantity of the exhaust gas from M/E
B.the quantity of steam demanded
C.the rotary speed and the cooling water temperature of main engine
D.efficiency of M/ turbocharger