查询词典 macromolecules

Because transient increases in choroidal thickness are followed by a prolonged decrease in synthesis of extracellular matrix molecules and a slowing of ocular elongation, and attempts to decouple the choroidal and scleral changes have largely failed, it seems that the thickening of the choroid may be mechanistically linked to the scleral synthesis of macromolecules, and thus may play an important role in the homeostatic control of eye growth, and, consequently, in the etiology of myopia and hyperopia.

由于细胞外基质分子合成持续减少以及眼轴变长减缓，脉络膜厚度瞬间增加，对脉络膜和巩膜变化的缓慢调节彻底失败，脉络膜增厚可能与巩膜合成大分子机械性联系在一起，因此它可能在眼生长稳态的控制方面发挥了重要作用，而且，也可能是近视和远视的病因。

2 Macromolecules Are Composed of Monomeric Subunits.

一、生物大分子是细胞的主要成分。

For some characteristic groups in the macromolecules, whose reducing power isvery weak, the suitable oxidator is difficult to select in order to make graft copolymerization.

对于聚酰胺等大分子上还原能力较弱的特征基团，很难找到氧化能力合适的氧化剂，组成氧化还原引发体系，进行接枝共聚。

Optically active propargylic alcohols are very useful and important precursors to many chiral organic compounds including natural products, pharmaceutical compounds and macromolecules.

手性丙炔醇是非常重要的合成中间体，广泛应用于天然产物、药物以及复杂大分子化合物等的合成。

A highly sensitive and selective assay method of biological macromolecules is proposed based on the measurements of BRLS signals at water/tetrachloromethane (H2O/CCl4) interface.

本文在普通RLS技术的基础上，设计了后向光散射(Backward resonance lightscattering，BRLS)信号检测装置，通过检测后向的共振光散射信号，实现了对生物大分子的高灵敏及高选择性分析。

Radicals, hydrogen peroxid e and singlet oxygen are known to oxidize biological macromolecules, with

O2 -。1O2 是一种反应活性相当高的亲电瞬态中间体，能高效地氧化生物大分子，造成生物体的

In order to facilitate the recycling of the useful components,the heavy by-product s in benzoic acid production were decolored by adsorption and distillation processes to remove the colored impurities such as crosslinking macromolecules and carbonized compounds.

为了有效去除苯甲酸重副产物中含有的交联大分子和碳化物等有色杂质，降低有用组分资源化处理的难度，分别采用吸附和蒸馏两种方法对苯甲酸重副产物进行脱色处理。

Would like to mention biological carcinogens, inevitably referred to aflatoxin, which is known to cause cancer is the most poisonous biological macromolecules.

要提到生物致癌物质，必然提到黄曲霉素，它是知道的最毒的致癌生物大分子。

In this thesis, two chemical structural models were constructed based on several structure parameters derived from FTIR and 13C NMR data, which were processed by curve-fitting and curve-resolved. Modified models were obtained by simulation oftheir molecular vibration spectra using Cerius 4.6/IR module andthe structural parameters from 13C NMR. Potential energy, bondenergy and non-bond energy of the minimum-energy conformations of coal macromolecules were calculated by molecular mechanics calculation and molecular dynamics simulation. These results demonstrate the importance of hydrogen bonding and van der Waals interactions in the formation and stabilization of coal macromolecular structure, and a strongest tendency of hydrogen bonding interactions to increase with the coal molecules but the Coulombs force.

本文运用煤结构的傅立叶红外光谱和固体核磁共振碳谱~(13C NMR测试方法所得的结果，经过谱图分峰、分析，计算出若干表征煤大分子结构参数，并综合前人的经验和共识，利用计算机分子绘图软件系统构建了表征两种褐煤的化学结构模型，在Cerius~2 4.6／IR模块中计算了分子振动红外光谱，同时结合碳谱所计算的分子结构参数拟合、修正了该结构模型，得到了能表征这两种煤样的分子结构模型，作为用分子动力学模拟和量子化学计算的初始结构模型。

Cryoprobe is tremendous development if you know how much money Bruker earned by introducing this technology into NMR industry a few of years earlier than Varian. Cryoprobe is great for Biology Macromolecules with short lifetime and low yield.

个人觉得Cryoprobe与常规探头比较，唯一的好处是在同样的记谱时间里可以用减半的样品浓度，这样对生物样品来说就可能降低很多可能聚集效应带来的artifact。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐