According to the researchers, the slight drop in survival in people with the highest CCFs was likely due to the small sample size of the study.
在研究者看来，拥有最高CCF指数的病人存活率反而有略微下降可能是由于研究样本量过小造成的。
The experiment of controlled-release fertilizers(CRFs) on growth of Rosa chinensis plant in pot was conducted in comparison with common compound fertilizers(CCFs).
采用包膜控释复肥对月季进行盆栽试验，并与普通复肥进行了肥效对比。
The experiment of controlled-release fertilizers(CRFs) on growth of Rosa chinensis plant in pot was conducted in comparison with common compound fertilizers(CCFs).
采用包膜控释复肥对月季进行盆栽试验，并与普通复肥进行了肥效对比。
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