The raw material is introduced at the higher end and moves steadily down the kiln to the burning zone.

原料从窑的较高端进入并稳定地向下运动，到达燃烧区。

youdao

The raw material is introduced at the higher end and moves steadily down the kiln to the burning zone.

原料从窑的较高端进入并稳定地向下运动，到达燃烧区。

youdao