Heat may be in the form of electric elements, lazy - flame gas, ultra - violet or infra - red radiation.

可以用电力元件, 低能火焰, 紫外线或红外线辐射发热.

互联网

The swirl - flow dish - flame gas - burning installation is a new type device with high performance.

旋流碟焰燃烧装置是一种性能优良的新型燃气燃烧装置.

互联网