annular kiln meaning in English

环式窑
环窑
轮窑

Number of fire travels in annular kiln
窑的部火数
The methods for the measurement and calculation of heat balance , heat efficiency of annular kilns
轮窑热平衡热效率测定与计算方法
The methods for the calculation of the efficiency , unit heat consumption and unit coal consumption of tunnel dryer annular kiln system
隧道式干燥室? ?轮窑体系热效率单位热耗单位煤耗计算方法