1.
No, the sun is not very hot in spring.
“不，春天的太阳不算火热。”
2.
a burner that produces a hot flame.
能产生热火焰的火炉。
3.
To heat(an oven, for example) beforehand.
预热预先加热(如,火炉)
4.
solar heating rocket engine
太阳加热式火箭发动机
5.
Cook a long hotdog sausage.
做一个长的热狗火腿。
6.
refractory hot spot of arc furnace
电弧炉耐火材料热区
7.
Heat is inseparable from fire.
热和火是分不开的。
8.
It's scorching (boiling) hot today.
今天像火烤一样地热。
9.
refractory-lined chamber
耐火材料内衬加热室
10.
This fire doesn' t seem to be giving off much heat.
这炉火好像不大热.
11.
Heat radiated from the fire.
热从炉火里散发出。
12.
It was scorching hot.
(天气)热得火烧似的。
13.
It's scorching hot.
天气热得火烧似的。
14.
Today is a real scorcher.
今天真像火烧的一样热。
15.
Flames consist of incandescent gases.
火焰含有炽热的气体。
16.
As the match burns, heat and light are given off.
火柴燃烧时发出光和热。
17.
oxythermal repair of refractory
耐火材料的氧热修补
18.
flame-treating head
火焰热处理用焰炬头