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- 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。
- Is that painting an original or a reproduction? 那幅画是原作还是复制品?
- Her description of the meeting is an exact reproduction of the reunion. 她对会面的描述是这次团聚的真实再现。
- A reproduction produced by gravure. 凹版印刷品凹版印刷生产的复制品
- This is a book about human reproduction. 这是一本关于人的繁育的书。
- The quality of reproduction isn't very good on this recording. 这次录音复制的质量不怎么好。
- This is not the original; it's only a cheap reproduction. 这不是原作,它只不过是廉价的复制品。
- He can distinguish a genuine antique from a reproduction. 他能区别真正的古董与复制品。
- I bought a reproduction of a famous painting for my room. 我买了一幅名画的复制品来装饰房间。
- differential reproduction 差异生殖
- We had to retool for enlarging reproduction. 为了扩大再生产,我们必须更换机械设备。
- The trees will propagate themselves by the reproduction of their seed. 这些树将通过种子的再生而自行繁殖。
- Maximum price differential old new crops6% but protein content similar. 新旧作物差价最高达6%, 但所含蛋白成份一样。
- Asexual reproduction is by FRAGMENTATION. 植物体也可通过断裂进行无性繁殖。
- These quantities are not perfect differential. 这些量不是全微分。
- Reproduction and spread; propagation. 复制和散布;繁殖
- RUGGEDNESS. Automotive ring gear differential. 强度:自动环形齿轮差动器。
- An exact copy or reproduction, as of a document. 摹真摹真本或复制品,如文件的
- A linear differential transformer has three coils. 一个直线差动变压器有三个线圈。
- Asexual reproduction, as by sporulation. 无性繁殖,如孢子的形成