查询词典 segregation

A genetic epidemiologic case-control study including 407 pedigrees(249 cabes and 158 controls)was car-ried out to estimate the segregation ratio and the hereditability(h￣2)of esophageal cancer by using the methodof Li-Mantel-Gart and Falconer,respectively,and to compare the genetic epidemiologic features from theother cancers.

本文通过遗传流行病学病例对照研究，对淮安407个家系（249个先证病例，158个对照），应用Li－Mantel－Gart和Falconer方法分别进行了分离比、遗传度估算及比较流行病学研究。

Tests of PCR and Southern blotting for transgenic plants as well as the segregation of hygromycin resistance in T1 generation confirmed that the target DNA fragments were integrated into genome of R109 and hereditable.

PCR、Southern blot鉴定以及转基因T0代种子的潮霉素抗性鉴定证明，目的基因已经整合到R109基因组中，并能在后代稳定遗传。

Two QTLs for the segregation distortion on chromosomes 5 and 6 indicated an abnormally high frequency of heterozygous genotype.

在第5、6染色体上控制偏分离的2个QTL位点，其杂合基因型出现的频率偏高。

It is very detrimental to materials performance. From the viewpoint of the effects of PPB precipitation on the frature of hipped P/M Rene'95, the surface segregation and reaction in Rene'95 powder metallurgy superalloy were analyzed by modern surface techniques and by electron microscopy. The mechanisms of the formation and reduction of PPB precipitation are revealed.

本文从原始颗粒边界析出对热等静压压坯断裂的作用的角度出发，利用现代表面分析技术及电子显微分析技术研究了Rene′95雾化粉末表面的偏析、预处理粉末的表面反应和表面析出相的粗化规律以及热等静压压坯的界面反应和原始颗粒边界析出相，揭示了原始颗粒边界析出的形成机理和预处理方法改善原始颗粒边界析出的原因。

But Pb-Cu alloy liquid is immiscibly and generally and rapidly separated into two distinct layers due to the big difference of density and melting points between the Cu and Pb; it is difficult to produce the uniformly dispersed microstructure without segregation.

但是铜铅合金熔炼时，铜与铅的熔点、比重差距大，而且铅在铜中的溶解度很低，最终组织极易形成严重偏析，严重影响产品质量，很难制造出铅弥散分布于铜中的优质合金。

The calculation of segregation at grain boundary and the work for intercrystalline cracking showed that Mg, Cr and Co elements have beneficial effect on the high temperature ductility of Ni-Cu based alloy which agrees with our experimental results.

对微量溶质在晶界偏析的晶界断裂功计算显示：Mg、Cr、Co对Ni-Cu基的晶界的高温塑性有明显的改善作用，可提高Monel K-500合金的高温塑性，这与实验结果甚为符合。

This indicates that the interpolymer complexation resulting from thestrong specific interactions has overcome the surface segregation effect caused by thedifferences in the surface free energies.

羟基和吡啶基之间的氢键概率随着羟基含量的增加而迅速增加，在高羟基含量(49 mol％)的情况下，几乎达到1.0，这也从另一个方面说明了在络合物中，链段配对的趋势很强。

The simulations also show that on gas displacement front , CO2 drive is gas expansion drive when CO2／N2 slug, intraformational heterogeneity is more important than gravity segregation for the gas flooding of low permeable oil reservoir .

此外，对于低渗油藏，气驱主要受层间非均质性的影响，重力超覆影响较小。

Meanwhile, analyses the basic segregation reason under external force with motion and kinematical analysis methods.

采用颗粒运动和动力学方法分析了在外力作用下混合料离析的根本原因。

It was found that the PGEs were enriched to ore bed by early magmatic segregation.

结果证实，铂族元素倾向于岩浆分离结晶早期富集成矿。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。