化学变化

纸燃烧时会产生化学变化。

The chemical change takes place in paper when it burns .

当两种或两种以上的元素结合形成化合物时，发生化学变化。

When two or more elements combine and form a compound , a chemical change takes place .

他们的测试寻找从肿瘤中泄漏到血流中的零星的遗传密码的化学变化。

Their test looks for chemical changes to bits of genetic3 code that leak from tumours into the bloodstream .

目的：观察老年人牙周炎龈组织T和B淋巴细胞免疫组织化学变化。

Objectives : To observe immunohistochemical characteristics of T and B lymphocytes in old periodontitis patients .

HDPE、PC在冲击压缩下的表面化学变化

Surface modification of HDPE and PC under shock pressure

在含Cl~－体系中LC－4铝合金腐蚀裂缝内溶液的化学变化及临界pH值

The Study of the Chemical Changes and Critical pH of Solution in Cracking in Cl ￣ - System for LC-4 Alloy

PCD中的形态学变化和生物化学变化都有着严格的时序性。

The timing of morphological and biochemical changes are ordered during PCD .

用XRD，IR，SEM，TGDTA等测试手段详细研究了涂膜在加热过程中所发生的物理-化学变化。

XRD , IR , SEM and TG DTA were used to study the chemical physical change of the film at different temperatures .

目的：观察兔髂动脉再狭窄（RS）组织内皮素（ET）免疫组织化学变化，探讨ET与RS的关系。

Objective : To observe the immunohistochemical change in rabbit iliac artery restenosis ( RS ) and to study the relationship between endothelin ( ET ) and RS.

SOA中的有机物影响着气溶胶颗粒的物理和化学变化性质，进而对大气和气候产生影响，因此，要深入认识SOA的形成过程的反应途径和有机醛酮的聚合反应。

The organic of SOA effects the physical and chemical changes of aerosol particles , thus impacts atmosphere and climate . Therefore , we need to be further gone into the reaction pathway of SOA formation and polymerization of organic aldehydes .

在小鼠接种小鼠宫颈未分化鳞状细胞癌14号（U（14）细胞）后的25d时间中，动态地观察了宿主淋巴组织的重量、组织学和组织化学变化。

In this paper , changes of weight , histology and histochemistry in lymphoid tissue of mice inoculated with mouse uterine cervix carcinoma No. 14 ( U_14 ) were monitored during a 25-day time course .

Longacre说碱液和脂肪分子会发生反应，经过化学变化转化成肥皂和甘油。

Diane Longacre says the lye and oil molecules combine and chemically change into soap and glycerin .

经过ATR-FTIR分析，得到了硅橡胶表面在放电过程中发生的化学变化情况。

It gained the chemical changes happened in the process of discharge at the surface of silicone rubber by the Attenuated Total Reflection Fourier Transform Infrared Spectroscopy ( ATR-FTIR ) .

实验性吗啡依赖大鼠肾皮质组织化学变化

Histochemistry changes of cortex of kidney in experimental morphine dependent rats

你能辩别物理变化和化学变化吗？

Can you tell a physical change from a chemical one ?

靠意识知觉的变化，实际的化学变化出现了。

With a change in consciousness , actual chemical changes occur .

微生物是引起化学变化的作用者。

Microorganisms are the agents that bring about the chemical change .

太阳、空气和风引起快速的化学变化。

Sun , air and wind cause quick chemical changes .

这些是物理变化而那些是化学变化。

These are physical changes while those are chemical changes .

沥青纤维在其不熔化过程中，发生了一系列复杂的化学变化。

Some complex chemical changes happened in curing process of pitch fiber .

调制过程中晒黄烟的物理变化和化学变化

Physical and Chemical Changes in Yellow Sun-cured Tobacco during Curing

本文较全面系统地介绍了高岭土干粉磨过程中发生的机械力化学变化。

The mechanochemical changes of kaolin during dry grinding were thoroughly studied .

当锈形成的时候，就发生了化学变化。

When rust is formed , a chemical change has taken place .

这种修饰作用包括碱基的化学变化。

These modifications include the chemical alternation of the bases .

我们看到已发生了化学变化。

We saw that a chemical change had taken place .

常见舌苔细胞化学变化规律的定量研究

A Quantitative Study on the Law of Cytochemical Changes of Common Tongue Furs

破坏部分酶，以防有效成分发生化学变化生成毒性物质；

Destroying some enzyme to stop the formation of poison through active constituents ;

调制期间白肋烟主要物理、化学变化及调制工艺的确定

Curing Technology and Major Physical and Chemical Changes of Burley Tobacco during Curing

冷冻鱼糜蛋白在冻藏中的物理化学变化及其影响因素

Physicochemical Changes of Fish Muscle Protein during Frozen Storage and Its Affecting Factors

如果要发生重大的化学变化，必须要有空气。

Air is necessary if certain important chemical changes are to take place .