1.
The Study of the Fertilization Efficiency in C_(57)BL Mouse;
C_(57)BL小鼠生殖效率的研究
2.
What is overlooked in the arguments about the morality of artificially reproducing life is the fact that at present, cloning is a very inefficient procedure.
关于人工繁殖生命的争论忽略了目前克隆过程效率低的事实。
3.
Comparative Study of Biofilters with Four Different Substrates to Simulated Mariculture Wastewater
四种填料的生物滤器对模拟海水养殖废水处理效率比较研究
4.
Feed conversion efficiency and growth characteristics of juvenile Chinese sturgeon(Acipenser sinensis)cultured with different diets
人工养殖中华鲟幼鱼摄食不同饵料的转化效率与生长特性
5.
net reproduction rate
净再生产率，净（人口）繁殖率
6.
Brand,Conversion Efficiency and Effective Production Efficiency;
品牌、转化效率与有效率的生产效率
7.
The efficiency of reproduction may decline as a result of seasons.
繁殖效率可能受季节的影响而下降。
8.
Significance and Measurements to Improve Reproductive Efficiency of Boer Goats
提高波尔山羊繁殖效率的意义与方法
9.
The rooting rate was 97.5% for cut propagation under above conditions,and 98.2% for the upper air layering.
高空压条繁殖生根率为98.2%,为繁殖试验中生根率最高。
10.
The probability of survival is the reciprocal of fecundity.
生存的概率是生殖力的倒数。
11.
For far-ranging foragers, however, cost-effective walking saves many calories in maintenance energy needs- calories that can instead go toward reproduction.
而对长距离觅食者而言，有效率的走路模式节省维持能量的需求，省下的能量可以用在生殖上。
12.
Effect of Preoperative Chemotherapy on Malignant Extragonadal Germinoma in Children
生殖腺外恶性生殖细胞瘤患儿术前化疗的效果
13.
There were other reasons, too, for this mild reproduction.
生殖率这样低也还有别的原因。
14.
Study on Influencing Factors of Efficiency during Embryo Transfer of Sheep in Estrus;
繁殖季节绵羊胚胎移植效率的影响因素研究
15.
The Relationship between Placental Efficiency and Reproductive Performances in Landrace×Large White Sows;
长大母猪胎盘效率与繁殖性能关系的研究
16.
Relationship between Clinical Reproductive Abnormalities and Chromosome Polymorphisms
染色体多态性与临床生殖效应的研究
17.
Respiration and production of size-fractionated plankton in ponds with sea cucumber Apostichopus japonicus
刺参养殖池塘不同粒级浮游生物呼吸率和初级生产率的研究
18.
Production must become more efficient.
必须提高生产效率.