未鉴定生长因子提高增重不是由于蛋白质存留率提高。
The increasing weight gain by UGF surces is not caused by the increment of protein retention rate.
磁性附着体的存留率为87.5%，种植体的存留率为100%。
Cumulative survival rate was 87.5% for the prostheses and 100% for implants.
低蛋白组大鼠锌吸收率与存留率显著降低，提高蛋白质摄入水平可明显改善锌的吸收与存留；
The zinc absorption and retention of rats fed the lowest protein level were decreased significantly, and were improved clearly by increasing protein intake level.
结果表明：绍鸭对食入的CP的氮存留率显著（P＜0．05）受日龄及伺粮CP水平的影响。
The results showed that the age of Shaoxing ducks and dietary CP level significantly affected the CP retention ratio(p <0.05).
无疑热带地区真的是生物进化的温床，还有，在热带地区存留着一定数量的老物种，这就说明了热带地区物种的死亡率比温带地区要低，所以热带地区还是存有多样物种的大型博物馆。
There are also a number of old genera in the tropics, indicating that tropical extinction rates are lower than in temperate regions. So the tropics are also a museum of diversity.
无疑热带地区真的是生物进化的温床，还有，在热带地区存留着一定数量的老物种，这就说明了热带地区物种的死亡率比温带地区要低，所以热带地区还是存有多样物种的大型博物馆。
There are also a number of old genera in the tropics, indicating that tropical extinction rates are lower than in temperate regions. So the tropics are also a museum of diversity.
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