n.預(yù)加熱器

Once installed, this heater operates automatically. 一旦安裝好以后，這加熱器就會自動地運(yùn)行。

This heater needs a new element. 這個(gè)加熱器需要一組新電阻絲。

The heater in my car doesn't work properly. 我汽車?yán)锏呐瘹庠O(shè)備出了點(diǎn)毛病。

pre heater 預(yù)加熱器

You'll run up a huge gas bill if you leave the heater on. 熱水器要是總開著，煤氣費(fèi)就很高了。