求翻译：对比工况单侧下部回风与双侧下部回风回可以看出，双侧回风比单侧回风气流组织更加均匀，更适合跨度较大的建筑。是什么意思？

Contrast conditions unilateral lower part of the return air with bilateral lower part of the return air back can be seen, bilateral air return unilateral air return air distribution is more uniform, more suitable for large span buildings.

Compare the performance of single-side wind and double-side lower return back to double-side can be seen, return more than one side to the culture, and class organization is more evenly spread more suitable for larger buildings.

正在翻译，请等待...

Comparison condition unilateral lower air return and double-side lower air return back, we can see, double side air than the unilateral return airflow organization more uniform, more suitable for large-span of the building.

Lower part the contrast operating mode single side returns to the wind and two-sided lower part returns to the wind to return may see, two-sided returns to the wind the wind air current organization to be evener than Shan Cehui, more suitable span big construction.