回水坡度;
Backwater length will increase with the slower of bottom slope.
在静水长度以上河段底坡变缓后,回水长度会相应增大;
According to some correlative research, the backwater often happens in the aeration cavity when setting aeration bucket or slot on the base plate with slight slope.
研究发现,在小底坡的情况下设置掺气坎(槽),往往会造成掺气空腔内回水。
Bottom slope and criterion for the terminal of backwater determination may have effect on backwater length.
河道底坡和回水末端判别标准均会对回水长度产生一定影响。
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