heaters

1.Sales of electric heaters have increased.

电的销售量增加了。

2.Gasfired heaters should not be used in corrosive or explosive atmosphere.

燃烧煤气的加热不宜用于有腐蚀性或危险性的气体中。

3.The cooker,heaters and other electrical installations are all in perfect working order.

房、加热以及其他电设备都处于完好的工作状态。

4.Boiler's appurtenance: burners which will be suitable for the fuels of the boilers, water treatment devices, pumps, blowers, de-oxygenization devices, heaters, safety devices, water gages;

3配套设备锅炉燃用何种燃料的燃烧、处理设备、泵、风机、除氧、加热、安全、计等；