preheat

★☆☆☆☆

vt. 预热 [机] 预热

发音

其它 /pɹiːˈhiːt/

词形变化

preheated preheating preheats 三单 preheats preheating 现在分词 preheated 过去式 preheated 过去分词

释义与例句

n.
  1. 1.

    The act of heating before another process.

    不可数

    The ratio of preheat to postheat is often important and can produce significant differences in speed and economy of coating and in the end result. The authors show the relationship between these variables for a vinyl coating powder on objects of varying mass.

v.
  1. 1.

    To heat beforehand or in advance, to heat something in preparation for further action.

    预热

    及物

    to preheat the oven for the casserole

    to preheat the spare room for the guests

词汇关系

动词

上位词 2

heat heat up

词源

From pre- + heat.

来源：wiktionary