由分子组成的

The average molecular mass of polysaccharide is 8.6×10^4 u. Polysaccharide is composed of glucose, arabinose and uronic acid. There is no absorption peak of protein and nucleic acid at 280 and 260 nm.

大叶金花草多糖平均分子质量为8.6×10^4 u，由阿拉伯糖、葡萄糖和糖醛酸组成，在260和280nm处有多糖无核酸和蛋白质的吸收峰。

A hydrogen molecule consists of only two hydrogen atoms with the same atomic weight.

氢分子仅由两个原子量相同的氢原子组成。

HLA class I antigen light chain-β2-microglobulin(β2m plays an important role in immunology and immunogenetics.

13：一微球蛋白(13.m)是人类主要组织相容性抗原I类分子的轻链，由100个氨基酸残基组成，分子量为11 800。

Protoplasm is water, salt, organic molecules and various enzymes composed of catalytic reaction.

原生质是由水、盐、有机分子及各种催化反应的酶所组成。

Ribose and deoxyribose (sugar components of RNA and DNA, respectively) have five carbon atoms.

糖是由C，H，O 3种元素元素组成，三者的比例一般为1：2：1，分子通式可以写成(CH2O)n。

Molecular weight of the vitellin is 255 kD and the molecule is composed of four subunits with molecular weight of 84 kD, 69 kD, 63 kD and 49.8 kD, respectively.

卵黄蛋白的分子量为255 kD，其分子由4个亚基组成，亚基分子量分别为84 kD，69 kD，63 kD和49.8 kD。

A compact super-radiant optically pumped D2O gas Terahertz laser was developed, it consisted of pumping source, laser cavity, measurement and vacuum system, and the length of laser cavity could be changed in the range of 80-150cm.

实验研制了一种紧凑型工作腔长可变的超辐射光泵重水气体THz激光器系统，激光器系统由泵浦源TEA-CO2激光器、D2O气体分子THz激光工作腔、测量系统以及真空系统组成。

Avidin is a glycoprotein, molecular weight 60,000, each molecule consists of four energy and biotinylated subunits.

亲和素是一种糖蛋白，分子量60000，每个分子由4个能和生物素结合的亚基组成。

The morphological characters of all taxa in the matsutake group were analysed under phenetic classification and cladistic classifi...

本文由松口蘑群的形态学数量分类研究、分子系统学研究、生物地理学研究和单种描述四个部分组成。

Based on the-references on the thermal imidization of polyand the polymer composition analysis,the thermal imidization mechanism of SMA with aniline was demonstrated to be a two-stage consecutive reaction,in which a second-order reversible ring-opening reaction of SMA to produce poly(styrene-co-N-phenyl-maleamic acid)and a first-order irreversible intrachain ring-closing reaction to form SNPMI were involved.

论文首先参考聚酰胺酸热环化反应，并通过SMA酰亚胺化产物的组成分析，确定了SMA与苯胺的热酰亚胺化反应机理为一个包含由SMA生成苯乙烯—N-苯基马来酰胺酸共聚物的二级可逆开环反应以及由SNPMA生成苯乙烯—N-苯基马来酰亚胺共聚物的一级不可逆分子内闭环反应在内的串联反应过程，其中第二步SNPMA闭环反应为控制步骤。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。