取代

AARP's line is that any private accounts should supplement Social Security, not replace it, even partially.

AARP的立场是，任何的私人帐户都应该补充社会保险，而不是取代它，即使只是部分的取代。

Sequences of 28S rDNA across Acari, though with variable region, were not randomly distributed, with the expansion segments being more variable than the core regions and with an increasing sequence divergence with taxonomic distances.

散布图显示，转换取代与颠换取代有类似的线性变化；支序分析及群聚分析的亲缘关系显示，同科及同属内的成员都群聚的很好，全爪蟎属与小爪蟎属的亲缘关系近，与叶蟎属较近的是岩蟎属。28S rDNA的序列特性显示，其核心序列适合分析较高阶的蟎蜱亲缘，而展延区则可应用於低阶的分析。

The hydroxyl amino acid has been replaced, the resulting compounds can also be regarded as ammonia hydrogen has been replaced by acyl derivatives.

羧酸中的羟基被氨基取代后，生成的化合物，也可看作是氨的氢被酰基取代的衍生物。

To estimate the bioconcentration factor of benzene derivatives in fish by gas chromatography retention time, this paper measured the BCF of chlorobenzene, o-chloro-toluene, p-dichlorobenzene, m-dichlorobenzene, 1,2-dichlorobenzene, nitrobenzene, p-chloro-aniline, p-chloro-nitrobenzene, and 4-chlorodiphenyl in grass crap, and the t_R of test derivatives on the stationary phases of six kinds polarity.

为了用气相色谱保留时间估算取代苯类化合物在鱼体内的生物富集系数，测定了草鱼对氯苯、邻氯甲苯、对二氯苯、间二氯苯、邻二氯苯、硝基苯、对氯苯胺、对硝基氯苯、4-氯联苯9种取代苯类化合物的BCF和不同取代苯化合物在6种不同极性固定相上的tR，建立了tR与BCF的一元回归方程及tR一阶分子连接性指数(1XV)与BCF的二元回归估算方程。

It is found that these two organic dopant TGS crystals have better figures of merit than that of...

并从结构的角度出发探讨了双有机取代基对晶体生长形态和晶体性能的影响机制，提出了有机取代基分子本身的结构特征和有机取代基中的功能基团是影响TGS晶体形态和性能的两大因素。

The results of pharmacological assays, together with the structural characterization of the derivatives, indicate that immunomodulatory activity of glucan derivatives not only depends on the glycosyl residue linkages and sugar chain conformation, but also is closely related to the nature of functional groups, degree of substitution and its distribution in a glycosyl residue and along the sugar chain.

免疫药理分析表明，不同结构和电荷特性的取代基的引入可以极大地改变原多糖的免疫调节活性，不同取代度的同一种取代基也可能具有完全不同的免疫调节效应。

Both electronic and steric effects were observed for the homo coupling of aryl iodides. Electro-withdrawing and ortho substituents gave desired products in low yields.

在取代碘苯的偶联反应中观察到电子效应和位阻效应的影响，吸电子基取代和邻位取代对反应不利。

Well-resolved absorption spectra of benzoic acid and its derivatives with one hydrogen atom replaced by a substituent group CH3, OH, NH2 or NO2 were reported in the frequency region between 6 and 67 cm－1 at room temperature with terahertz time-domain spectroscopy.

本文利用太赫兹时域光谱技术获得了295K时苯甲酸，不同位置取代的甲基苯甲酸以及不同取代基对位取代苯甲酸在6至67 cm-1波段的时域光谱。

The results show that the torsion energy and van der Waals interaction energy are the main types of energy and the substitution group has a great effect on the total energy of molecular. The aliphatic substitution would lead to the increase of total energy, while the aromatic substitution would lead to the decrease of total energy. The calculated results of bond length show that the bond length of aliphatic C—C is longer than that of aromatic C—C, which indicates that the rupture of aliphatic C—C is easier than that of aromatic C—C on heating.

研究结果表明，扭转能和范德华能是分子中的主要作用力，取代基对体系能量有明显影响，烷基取代基使体系能量增加，而苯基取代基使体系能量降低；脂肪C—C键长比芳香C—C键长长，说明脂肪C—C在受热过程中比芳香C—C更容易断裂分解。

Years 7 months, from the smoke shop miscellaneous soon come out into the stock market to its own set of Zhou Jie set such a goal:"to earn 230,000 yuan, 200,000 to save up about 30,000 Shikumen old house decoration, and furniture to replace old-fashioned into a new combination of furniture, color TV replaced black and white TV, single double door refrigerator to replace the refrigerator door."

1991年7月从烟杂店很快出来进入股市它自己的一套周其鹅设置这样一个目标：&获得23.0万元，20万节省约30，000石库门老房子装修，家具，取代到一个新的组合家具老式，彩电取代黑白电视，单，双门冰箱，以取代冰箱的门。&

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。