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單項選擇題

Water evaporates or steam condenses at the saturation temperature, which depends upon the pressure, the higher the pressure （） the saturation temperature.

A.the more
B.the higher
C.the lower
D.the highest

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單項選擇題

A （） boiler is an auxiliary boiler sometimes included in a steamships installation for supplying steam to auxiliaries in port.

A.monkey
B.donkey
C.waste heat
D.main

單項選擇題

Between the steam dram and the smaller water dram below, large numbers of smaller diameter （） tubes are fitted.

A.fire
B.water wall
C.generating
D.down comer

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