一分子的

The structures and properties of nine derivatives, which are formed between two or three cations and the three active sites of the most stable glycine conformer, have been probed; And the binding strength between the different active sites of glycine and different cations have been compared in BSSE method.33. The activation parameters, coupling matrix element and so forth of Fe4+Gly system have been investigated with the hereto-exchange model and calculation scheme for weak coupling system.

鉴于一个甘氨酸分子就具备三个活性位和人体中大量阳离子的存在，在上述考察了甘氨酸分子的某一活性位结合了一阳离子之后，进一步探讨了其余两个活性位再与一个甚至两个阳离子继续作用所形成的九种衍生物的结构和性质。

Tooth Proportions.—There are 17 pitches: 2.5/5, 3/6, 4/8, 5/10, 6/12, 8/16, 10/20, 12/24, 16/32, 20/40, 24/48, 32/64, 40/80, 48/96, 64/128, 80/160, and 128/256. The numerator in this fractional designation is known as the diametral pitch and controls the pitch diameter; the denominator, which is always double the numerator, is known as the stub pitch and controls the tooth depth. For convenience in calculation, only the numerator is used in the formulas given and is designated as P. Diametral pitch, as in gears, means the number of teeth per inch of pitch diameter.

齿比——一共有17种齿比：2.5/5，3/6，4/8，5/10，6/12，8/16，10/20，12/24，16/32，20/40，24/48，32/64，40/80，48/96，64/128，80/160和128/256在这一系列的分数中的分子是径节，径节的大小决定了节圆的直径；而分数中的分母通常是分子的两倍，分母是残余径节，它的作用是控制齿槽的深度为了方便计算，在所有的公式中都使用分子作为计算参数，并且与齿轮的表示方式一样定义为径节P尺寸，也就是在节圆上，每英寸长度上的齿数

It is the electronic structure of molecule and the interaction between molecule and metal surface.

一是分子的电子结构，二是分子和金属表面的相互作用。

The E. coli ClpQY is an ATP-dependent protease that consists of an ATPase large subunit and a peptidase small subunit. The function of ClpQY protease is as a chaperon in refolding of misfolded peptides and as a protease to catalyse the degradation of abnormal proteins as well.

大肠杆菌ClpQY是一个ATP依赖的蛋白酶，ClpQY蛋白酶包含了具ATPase活性的大蛋白分子和一个小分子的peptidase，ClpQY蛋白酶作为一伴随蛋白质扮演分解错误摺叠的蛋白质，也为一催化分解不正常的蛋白质的蛋白酶角色。

YTY paper reinforcement of the recently developed a new water soluble polymer material, it is a high molecular weight polymer compound ionictype, mechanim, numberrepresentationof exesting non－ionic, and numberrepresentationof anions and cations, so this in paper-making process, you can and pulp fiber molecules multi-spots adsorption, which increases the fine celluiose filler and retention; at the same time it can also promote hydrogen between cellulose, and gives the paper jiantiao dry strength significantly increase, because the reinforcement of the unique structure, so it can be used with other paper cocatalyst compouding, a broad pH range as a reinforcement of the paper is available at wood pulp and wood pulp-straw gamasid mixed pulp and paper pulp etc.

YTY纸张补强剂系近期研制成功的新型水溶性高分子材料，它是一种高分子量复合离子型的高聚物，在其分子结构中，既有非离子基团，还有阴离子、阳离子基团，因此这在造纸过程中，可以与纸浆中的纤维分子形成多点吸附，从而提高填料与细纤维素的留着率；同时它还可促进纤维素分子之间的氢健作用，使纸张干强度明显提高，由于该补强剂分子的独特结构，因此它可与其它造纸助剂复配使用，能在较宽广的pH范围内，作为纸张补强剂，可以在木浆、木浆——草浆混合浆、革浆等多种纸浆中使用。

Since Watson and Crick have brought forward the model of DNA helix structure and explain about it's reproduce mechanism in molecule level, research work concerning DNA has been continuously lucubrated. However, whether translating inheritance information and rebuilding DNA molecule via menstruating DNA sequence, or to date the most compelling gene project, chromosome protract et. al, there all need a sort of molecule scissors cleaving DNA, DNA cleavage reagent. At present, tool enzyme of cleaving DNA is mostly DNA restriction enzymes founded in 70 years, which only cleave DNA at specific 4-8 base pair sequences that are usually palindromic, so this restricts the at very fast speed developing of gene technology at certain extent.

自从Watson和Crick提出DNA的双螺旋结构并对其复制机制在分子水平上进行解释后，使得对DNA的研究不断深入，但无论是通过测定DNA的序列来破译遗传信息、改造DNA分子，还是目前最令人关注的基因工程、染色体绘制等，都需要一种断裂DNA分子的&剪刀&——DNA断裂试剂，目前断裂DNA的工具酶主要是上个世纪70年代发现的DNA限制性内切酶，但所知的Ⅱ型限制性内切酶的DNA序列识别长度较短（约为4～8个碱基对），而且一般要求回文结构，这就给飞速发展的基因工程技术带来一定的限制。

A completely reductionistic approach would look only at the behaviour of the individual molecules, perhaps in an environment that is a frozen representation of the molecules' environment in the living organism.

作为一种完整的还原方法，应该只观察单个分子的行为，这或许是在这样一种环境中进行的，即，生物机体中分子环境的冻结呈现。

When infrared ray irradiates to the surface of material and radiating frequency is same as material molecular frequency, the radiating energy is strongly absorbed by the material.

红外辐射是辐射物体以电磁波的方式传播内能的过程，当红外线照射到某一物体时，如果入射的红外线频率和物体分子固有频率相一致，则物质分子就会表现出对红外线的强烈吸收，吸收的那一部分能量就转化为分子的热运动，使物体温度升高，达到加热干燥的目的。

In this model the partons are allowed to transport until ceasing interactions with other partons at given scattering cross section.

这一模型在给定散射截面后，让每个部分子一直演化下去，直到它和其它部分子的相互作用停止为止。

In the first part of the thesis, we built up a highly sensitive and highresolution laser photoacoustic spectrometer, which can be used in the measurement of themolecular spectra of highly excited vibrational states. The high resolution near infraredspectrum of CrS and the hyperfine structure of 〓 molecule was also studied in thispart, spectroscopic constants were obtained by fitting the experimental data.

在本论文的第一部分，我们建立了一套高灵敏度和高分辨率的用于测量分子高振动态振转光谱的光声光谱仪，还使用激光诱导荧光方法研究了CrS分子近红外波段的高分辨光谱和〓分子的超精细结构，拟合得到了它们的光谱常数。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。