摘要
通过对两种地槽风道通风性能的比较，得出变截面地槽的通风性能要优于等截面地槽；分配器加罩可大大提高地槽风道的通风效果。
By comparing the ventilation characteristics of two kinds of land groove air dut, a conclusion can be drawn that the veriable cross section groove is better than the uniform section groove, and that much improvement can be made in the ventilating effect by adding a cover to the distributor.
关键词
通风性能
粮食储存
地槽风道
机械通风
uniform section veriable cross section characteristic of ventilation
