你可能感興趣的試題

The static suction lift of a pump is the difference in elevation between the （）.

A.centerline of the pump and the level of the liquid in the suction well when the source of liquid is below the pump
B.centerline of the pump and the suction liquid level when the source of liquid is above the pump
C.centerline of the pump and the level of the discharge liquid
D.liquid levels of the suction and discharge

單項(xiàng)選擇題

The sum of the sensible heat and the latent heat of any substance is known as （）.

A.total heat
B.residual heat
C.specific heat
D.superheat