So the regeneration of high loading rate sludge was noneffective.
对于高负荷污泥的再生是无效的。
2
The same results were obtained after comparing the effective group and noneffective group, P<0.05.
同样，将两组“显效”、“有效”、“无效”进行比较，差异均有显著性（P＜0.05）。
3
Noneffective tillering period, which contributed more than 50% root growth quantity to the accumulated root growth at heading, was the main period influencing root growth accumulation.