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With the acid and alkali titrate method,we got the mean molecular weight and discussed the monomer density,the initiator amount used, chain transfer agent factor as well as reaction temperature to molecular weight influence tendency and d.

聚丙烯酸钠在很多领域的广泛应用，我们采用水溶液聚合法中的中和法合成低分子量聚丙烯酸钠，用酸碱滴定的方法测得聚丙烯酸的平均分子量，并探讨了单体浓度、引发剂用量、链转移剂用量以及反应温度等因素对聚丙烯酸钠分子量的影响趋势和程度。

Sowing fertilization monomer form of installations, and round configuration of the increase in broadcast rear rack can be planted to ensure that the land side; the use of knife-type trencher stubble breaking, and buried a small resistance, with stubble in the soil is not cultivated to the same place deep application of fertilizer and sowing operations.

播种施肥装置采用单体形式，地轮配置在播幅之内机架后方，能保证播种到地边；采用刀式破茬开沟器，入土阻力小，能在带麦茬未耕土壤里进行同位深施肥和播种作业。

After a short reaction time most of the monomer will have disappeared and the reaction system will contain a mixture of dimer, trimer and other low polymers

经过短时间反应后，大多数单体消失，反应体系将是含有二聚体，三聚体和其他低聚物的混合物。

HSBP1 interact with the trimer formation of HSF1 to convert the HSF1 from its active trimer state to inert monomer state.

HSF1 在无活性的单体及有活性的三聚体之间的转变和平衡是转录调控的关键。

The effect of modification between BR monomer and trimer is similar, photovoltage and photocurrent intensities of Q-CdS are increased by 5 times and 1 time individually.

BR对Q-CdS薄膜表面修饰后，可大大增强Q-CdS的光电响应，BR单体与三聚体的修饰作用相似，光电压强度增加5倍，光电流增加1倍以上。

The molecular packing in the crystal suggests the physiological form of the mitochondrial SQR is most likely to be a monomer, unlike that for E. coli which is believed to be a trimer.

此外，通过分析该复合物在晶体中的排列，我们推测它在线粒体内膜上是以单体形式发挥功能的，这一点与原核生物 SQR 的二体/三体化现象不同。

METHODS The effects of Honeysuckle and its monomer organic acid against platelet aggregation induced by ADP was determined by turbidimetry in a series of concentration,and the IC_50 was calculated by Logit method.

应用比浊法测定金银花及其单体有机酸类化合物的体外抗ADP诱导的血小板聚集作用，通过系列浓度，用Logit法计算50%聚集抑制浓度(IC50)。

A series of grafting-modified dregs were prepared and the influence of monomer ratio, rotation speed and time of ball milling on grafting efficiency was investigated. It is demonstrated that mechanochemical techniques of ball-milling can smash up dregs as well as initiate in-situ grafting polymerization. Thus the usableness and uniform dispersion of dregs in polymer matrix can be ensured.

通过红外光谱和热失重分析证明，球磨过程在粉碎细化废渣的同时，可由力化学作用引发原位接枝聚合反应，将改性聚合物化学键接在废渣表面，使废渣具备与聚合物共混、在聚合物基体中均匀分散的基本条件。

In the system of solvents comprised of water and methanol,theTrommsdorff effect appeared in the curve of the graft yields vice verse theconcentrations of the monomer.

在甲醇和水的混合溶剂体系中，接枝率随单体浓度变化的曲线中出现凝胶效应。

Saturated small molecules such as glycerine, triethanolamine, saturated water-soluble macromolecules including corn starch and polyvinyl alcohol, and vinyl monomer are employed as modifiers for polymeric material surface.

本文首次利用Ce3+的紫外光敏特性，将其作为光催化引发剂，引发饱和小分子如单糖、多元醇，水溶性大分子如淀粉、聚乙烯醇，乙烯类单体如丙烯酸、丙烯酰胺、甲基丙烯酸甲酯等在聚合物基材表面的改性。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新