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- differential reproductive rate 差异繁殖速度
- Indications: Supply Calcium, Strength bone and teeth, improving reproductive rate and growth. 功能：高效补钙，促进骨骼和牙齿发育，防止骨质疏松。
- Objective To compare the effects of colony oviposition and single tube oviposition for improving the reproductive rate of Anopheles anthropophagus . 目的比较群体产卵法与单管产卵法对提高嗜人按蚊繁殖率的效果。
- They are preyed upon by a wide variety of other beasts -- including the Gungans -- but their high reproductive rate keeps them surviving. 牠们是其他许多动物的猎物--包括刚耿族人--但是极高的繁殖率使牠们仍能存活下来。
- Indications: Promote the transformation of calcium and phosphorus, prevent osteoporosis, rachitis, abortion, eye disease, etc. Enhance reproductive rate, Improve hair quality. 功能：预防和治疗维生素E缺乏症，促进体内钙磷的转化，防止骨质疏松、佝偻病等，提高繁殖能力，增加毛发色泽。
- He increased the reproduction rate of rabbits by inducing oestrus. 他使用催情的方法来提高兔子的繁殖率。
- The reproduction rate of the aphid is influenced by nutrition. 蚜虫的繁殖率受到营养的影响。
- With the methods of observing physiological indexes, growth and development, reproductive rate and production targets, 20 Angora goats introduced from Australia into the loess plaleau of north Shaanxi were studied on adaptability. 采用测定生理指标,生长发育、繁殖率和生产指标的方法,对从澳大利亚引进的20只安哥拉山羊进行适应性研究。
- We may track heritable changes across genotypes and morphology (physical form), as well as across life history traits such as virulence, transmissibility, host specificity and reproductive rate. 我们可以在基因型与形态（体型）之间，以及在各个阶段的生命史特徵，像是毒性、传染力、宿主专一性与生殖率等之间，追踪遗传变化；
- Natural selection (selection) -- Differential reproduction of different members of a species due to the variability in fitness among individuals or genotypes, leading to changes in allele frequencies over time. 天择--天择是改变对偶基因频率的主要因素，因为天择的结果使某种基因型的个体减少，因而改变原有的对偶基因频率。
- At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。
- Mosquito fish had large habitat niches, rapid growth rate, ovoviviparity, high reproduction rate and large adaptation reproduction conditions. 它们具有广泛的生境适应性、生长迅速、卵胎生、高生殖率、对生殖生态条件无特殊要求等特点。
- Intensifying the problem is the slow reproduction rate of the reptiles. On average, female tuatara mate once every four years, and eggs take between 11 and 16 months to hatch. 更糟的是，这种动物繁殖率很低。平均来说，雌性每4年才交配一次，而卵需要11-16个月时间孵化。
- Effects of cold region on fattening lambs and doe reproductive rate 寒冷地区羔羊直接育肥效果及对母羊繁殖率的影响
- What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少？
- The reproductive quality of audio tapes has improved enormously. 录音磁带的复制质量有了很大改进。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- Study and Practice on Improving the Reproductive Rate of Stud Sows 提高种母猪繁殖效率的探索与实践
- However, reproduction rates of some insects such as aphids are influenced by nutrition. 然而，一些昆虫的繁殖率，如蚜虫等是受营养影响的。
