The collagen molecule , also known as tropocollagen or collagen monomer, is about 3, 000?? long by 15??

胶原的分子也称为原胶原或胶原单体物，长约3000?耄

属类：综合句库--

Structural formulas show bonds (see bonding)between atoms in a molecule as short lines between symbols; they are particularly useful for showing how isomers differ. A projection formula also indicates the three-dimensional arrangement of the atoms (see Fischer projection; stereochemistry).

结构式由连有短线的元素符号组成，短线代表化学键，一、二或三条线分别代表单键、双键或三键;结构式在显示等雨率线如何不同方面特别有用。投影式可表示原子的三维结构安排。

属类：化学及生命科学-化学-

Take any ice-cold air molecule milling around my kitchen

就以我家厨房里游弋的任何一个冷空气分子为例吧。

属类：综合句库--

Antibody: Molecule in the immune system that circulates in blood and lymph in response to invasion by an antigen.

抗体亦称免疫球蛋白。指生物体免疫系统中，因应外来抗原或微生物入侵而产生的一种保护性分子。

属类：化学及生命科学-化学-

The length of the chain molecule is proportional to the kinetic chain length

链分子的长度与动力学链长成正比。

属类：综合句库--

Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合而成一个水分子。

属类：综合句库--

Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合而形成一个水分子.

属类：综合句库-典型例句-

Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.

两个氢原子和一个氧原子结合形成一个水分子。

属类：综合句库--

A few substances (e.g., aluminum, zinc)form amphoteric oxides, which form salts with both acids and bases. Certain organic compounds form oxides in which the oxygen is covalently bonded to an atom of nitrogen (amine oxides), phosphorus (phosphine oxides), or sulfur (sulfoxides)in the organic molecule .

两性氧化物含有氧和阳离子(如铝、锌)。某些有机化合物，其中氧原子以共价键与氮、磷或硫原子结合。所谓烯的氧化物就是环醚。

属类：化学及生命科学-化学-

Any of various phosphorous-containing lipids,such as lecithin and cephalin,that are composed mainly of fatty acids,a phosphate group,and a simple organic molecule .

磷脂一种含磷的油脂，如卵磷脂和脑磷脂，主要由脂酸、磷酸盐和一个简单的有机分子组成

属类：综合句库--

On the other hand, if the polymer chains are linked together at numerous points, the polymer is one large three-dimensional molecule , infusible and insoluble. Such polymers are called cross-links.

另一方面,如果这些聚合物链在许多的结点处交联在一起,这样的聚合物就是一个巨大的三维分子,是不可熔化及不可溶解的。这样的聚合物被称为交联聚合物。

属类：化学及生命科学-化学-

Chlorine: Nonmetallic chemical element, chemical symbol Cl, atomic number 17. It is a toxic, corrosive, greenish yellow gas (as the diatomic molecule Cl2)that severely irritates the eyes and respiratory system (and was used for that purpose as a chemical-warfare agent in World War I).

氯:周期表VIIa族，非金属的化学元素，化学符号Cl，原子序数17。为浅黄绿色的腐蚀性有毒气体，对眼睛和呼吸系统有刺激作用，在第一次世界大战时用作化学战战剂。

属类：化学及生命科学-化学-

No single molecule has the sole prerogative of growth regulation

没有一种单个的分子具有调节生长的唯一特权。

属类：综合句库--

Either of two protein subunits of a myosin molecule ,obtained especially through the digestive action of trypsin.

酶解肌球蛋白肌球蛋白分子的两种蛋白质结构单元的一种，主要通过胰蛋白酶的消化作用而获得

属类：综合句库--

Each state represents a different combination of rotational, vibrational, or orbital energy for the molecule

每个态均表示分子的旋转，振动或轨道能量的不同组合。

属类：综合句库--

Each molecule of hemoglobin for example, assumes exactly the same shape to the smallest detail

每一个血红朊分子直到最小的细微部分都具有完全相同的形状。

属类：综合句库--

The portion of an immunogenic molecule with which an antibody or lymphocyte reacts.

免疫因子与抗体或淋巴细胞反应的免疫基因分子

属类：综合句库--

An anhydride formed by the removal of a water molecule from the hydroxyl and carboxyl radicals of hydroxy acids.

内酯一种通过从酸的羧基中除去一个水分子而形成的脱水物

属类：综合句库--

Ligand: Atom, group (see functional group), or molecule attached to a central atom, usually of a transition element, in a coordination or complex compound.

配位体:与一个中心原子相连的原子或分子，通常是过渡元素，形成共价键化合物或复合离子。

属类：化学及生命科学-化学-

Prusiner suggests that "the more the sequence of a scrapie PrP molecule resembles the PrP sequence of its host, the more likely it is that the host will acquire prion disease."

普鲁辛纳假设“羊瘙痒病PrP分子的顺序与其宿主的PrP顺序愈相似，则宿主愈可能传染上普里安病。”

属类：综合句库--

Any enzyme that catalyzes the rearrangement of atoms within a molecule ,especially one that causes the transfer of a phosphate group from one carbon atom to another.

歧化酶任何一种在一个分子内能催化原子重新排列的酶，特别是那种引起一个磷酸盐基从一个碳原子向另一个碳原子转移的酶

属类：综合句库--

Nucleophile (1923) Atom or molecule that contains an electron pair available for bonding and in chemical reactions therefore seeks a positive centre, such as the nucleus of an atom or the positive end of a polar molecule (see covalent bond; electric dipole).

亲核试剂(1923):含有用于成化学键的电子对，在化学反应中寻求正电中心(如原子核或极性分子的正端)的原子或分子。

属类：化学及生命科学-化学-

Millennium scientists then test that ACE-2 inhibitor molecule for safety and efficacy in laboratory animals

然后千年制药公司的科学家开始在实验室动物体上试验ACE-2抑制剂分子的安全性和功效，这通常需要5年到10年的时间。

属类：综合句库--

Any heteronuclear diatomic molecule must have a dipole moment since its two ends are different

任何异核双原子分子必然具有偶极矩，因为它的两端是不同的。

属类：综合句库--

Containing three replaceable hydrogen atoms per molecule .Used of an acid.

三元的三代的，三碱(价)的每个分子中含有三个可取代的氢原子的。用于酸类

属类：综合句库--

It is calculated in practice by summing the atomic weights of the atoms making up the substance’s molecular formula. The molecular weight of a hydrogen molecule (chemical formula H2)is 2 (after rounding off); for many complex organic molecules (e.g., proteins, polymers)it may be in the millions.

实际计算中是把组成该物质分子式的各原子的原子量求和而得。氢(化学分子式H2)的分子量是2(经四舍五入后)。对于许多复杂的有机分子(例如蛋白质、聚合物)，其分子量可达几百万。

属类：化学及生命科学-化学-

A molecule of water consists of two atoms of hydrogen and one atom of oxygen

水分子含有两个氢原子和一个氧原子

属类：综合句库--

thus further oxidized to more stable small molecule such as oxalic acid which is the inevitable product of aniline degradation due to the electrophilic character of ozone.

所以这些物质能进一步氧化分解成草酸等更稳定的的小分子。臭氧的亲电子性使草酸成为苯胺分解的必然产物。

属类：化学及生命科学-化学-臭氧氧化

As the nearly unreactive diatomic molecule N2, it is useful as an inert atmosphere or to dilute other gases. Nitrogen is commercially produced by distillation of liquefied air. Nitrogen fixation, achieved naturally by soil microbes and industrially by the Haber-Bosch process, converts it to water-soluble compounds (including ammonia and nitrates).

它是最稳定的双原子分子N2，可用来产生惰性的气体氛围，或用于稀释气体。商业上通过液化空气的蒸馏来生产氮气。自然界通过土壤里的微生物可达成固定氮作用，而在工业上则利用哈伯-博施法将它转化成可溶于水的化合物(包括氨和硝酸盐)。

属类：化学及生命科学-化学-

Any of a large group of enzymes that catalyze the hydrolysis of peptide bonds in the interior of a polypeptide chain or protein molecule .

肽链内切酶在多肽链或蛋白分子内部加速肽键水解的任何较大的酶群

属类：综合句库--