衍生物

By using the polarizability effect index,a simple method for calculating standard enthalpies of vaporization of alkyl derivatives of main chain has been built up.

利用极化效应指数，建立了计算直链烷基衍生物同系物的标准汽化热的方法。

This allows for tremendous diversity in the realm of poly derivatives.

这使得巨大的多样性的境界聚的衍生物。

In this paper poly and monomethoxypoly with different molecular weight were used as raw material.

本论文通过不同的合成方法，利用不同分子量的聚乙二醇和甲氧基聚乙二醇为原料，制备了不同类型的聚乙二醇衍生物。

It was applied to analyze the structures of ashless dispersants and their derivatives. The results were obtained and correlated. The molecular weight distribution and dipersity of ashless dispersant, number of polyisobutene R and polymeric degree of R polymerism in addition agent were obtained.

以Ultrastyragel为固定相，四氢呋喃作流动相，用普适标准校正曲线及凝胶渗透色谱法对无灰分散剂及其对应衍生物的结构进行了分析测定，并将测定结果相关联，计算出了无灰分散剂的相对分子质量分布、分散度及添加剂所含聚异丁烯R基的个数及R基聚合度。

An unstable important intermediate ,2- methoxymethyl-hydroquinone which is very easy to oxidize and polymerize, and its precursors were first synthesized, a...

第一、二条合成线路前人未见报导，从中得到了四个苯并呋喃类衍生物，并详细地探索了环化反应的条件。

Polyvinyl acetate or its derivatives may also be employed in the adhesive formulations to reduce weight loss during cure.

聚乙酸乙烯酯或者其衍生物也可以用于该粘合剂配方以减少在固化期间的重量损失。

Numerous studies have been focused on synthesis and applications of porphyrin derivatives.

卟啉衍生物的合成及应用是目前研究的热点之一。

Picosecond time-resolved studies using time-correlated single photon counting technique were performed for four Polythiophene derivatives ( POTT、POTTOT、POTPy and POTPyOT ) under three different conditions ( Solution、Film and PMMA Film).

本论文利用时间相关单光子技术（Time-Correlated Single Photon Counting；TCSPC）来研究聚噻吩衍生物( POTT、POTTOT、POTPy及POTPyOT )在三种不同凝态环境下(溶液、薄膜、混PMMA薄膜)的光谱与动态学。

Prominent Civil War historians routinely cite Kentucky's peculiar brand of Unionism, a nationalism that also encompassed brief neutrality and a proslavery, anti-Lincoln ethos, as both derivative of and critical to Northern and Southern war efforts.

突出内战历史学家经常引用肯塔基州的独特品牌的工会，一个民族，也包括简短的中立性和proslavery ，反林肯精神，因为这两个衍生物和至关重要的北部和南部的战争努力。

Prothrombin time and International Normalized Ratio should be carefully monitored in patients concurrently administeredISTODAXandCoumadinderivatives.

凝血酶原时间和国际标准化比值应仔细监测患者同时管理ISTODAX和香豆衍生物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。