1.预热(炉,灶等)
1.to heat an oven to a particular temperature before putting food into it to be cooked
1.The fuel used for heating is either blast furnace gas or Coke oven gas. The combustion air is always preheated to improve fuel utilization.
用来加热的燃料不是高炉煤气就是焦炉煤气。燃烧用风通常要预热，以提高燃料的利用率。
2.The wet material will be preheated on the furnace bridge before going to the bath and will have no explosion happened.
湿料在被送进熔池前将在炉子的炉桥上被预热，不会发生爆炸。
3.For a crusty loaf, spray water on the walls of the oven right after placing the bread in a well-preheated oven.
喜欢脆式表层的话，那么面包入炉后，立即喷洒一些水在烤箱周围。
4.Stir well, cover and place in the preheated oven.
搅拌均匀，并在封面预热炉。
5.A preheated engine can be started directly on HFO provided that the external fuel system has the correct temperature and pressure.
且当外部燃油系统供给的柴油达到要求的温度及压力时，预热发动机就可以被启动。
6.Submerged nozzle must be preheated before casting. Now, burning the coal gas is the usual preheating method.
浸入式水口在浇钢以前必须进行充分预热，利用燃烧的煤气烘烤水口是常用的预热烘烤方式。
7.Molding shall, before the preheating, molding process should be preheated exhaust, don't be improving mould mild molding pressure.
成型前应预热，成型过程中应排气，不预热则应提高模温和成型压力。
8.Coal is taken from storage and fed to a pulverizer (or a mill), mixed with preheated air, and blown into the furnace, where it is burned.
煤是取自于磨煤机存储和（或）、混合机、预热空气吹入窑，它被烧毁。
9.Lamp starting method in which lamp filaments are preheated to facilitate lamp ignition.
通过灯丝被预热使灯点燃的启动方式。
10.Before mixing with the products of combustion , the air is preheated.
空气在与燃烧生成物混合之前要进行预热。