Too much air in the furnace of an oil－fired boiler would be indicated by _____.A.yellowish

The fuel injector injects a fine spray of fuel into the hot air and combustion _____, producing much high pressure in the gases.

Too much excess air is ______ because the heat generated is being lost through the exhaust

Many of the projects in Europe are not successful becauseA．they occupy too much space.B．th

Competition considered as the main thing in life is too grim, too tenacious, too much a ma

Too much electric current may flow into a circuit as a result either of a fault in the cir

共用题干U.S.Eats Too Much SaltPeople in the Unite