在化学变化中，一种物质变成另一种完全不同的物质。
During a chemical change, one kind of matter changes into another completely different kind of matter.
化学变化是一种改变粒子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particles is changed and a new substance is formed.
当化学变化发生时，就形成了一种或多种物质。
When a chemical change takes place, one or more substances are formed.
化学变化是改变分子结构、化学变化是改变分子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particles is changed and a new substance is formed.
如上所述，物质总是在进行着物理变化和化学变化。
As is mentioned above, substances are constantly undergoing physical and chemical changes.
我们将化学定义为：在人们中，处理物质间化学变化，并且此变化可能会产生一个新物质的科学家。
We may define chemistry as the science in which we deal with the chemical change in matter as a result of which it is possible to form a new stance.
当物质变成与其原来不一样的另一物质时，这种变化是化学变化。
When matter is changed to a substance different from what it was , the change is a chemical change .
机械力化学效应是研究物质在机械力作用下引起的化学变化，是一门新兴的边缘学科。
Mecho-chemical effect is a new borderline subject that studies chemical change of the matter under mechanical action.
从人类活动中释放出来的物质(包括氟氯烃和卤代烷哈龙)同臭氧层中的臭氧分子发生化学变化，导致其破坏。
The destruction of ozone molecules in the ozone layer by chemical reaction with materials released from human activities, including chlorofluorocarbons and halons.
每当发生化学变化时，就有一种新的物质生成。
Whenever a chemical change takes place , There is a new substance formed .
导致一种新物质生成的任何变化是化学变化。
Any change that results in forming a new substance is a chemical change.
当这些古老的有机物质经过进一步的埋藏和化学变化，泥炭就变成一种非常软的，像煤物质那样的褐煤。
After More burial and chemical transformation of the aging organic material, the peat becomes lignite, a very soft coal-like material.
通过化学变化可以生成新的物质。
任何改变物质化学性质的变化都是化学变化。例如，铁钉的生锈就是一种化学变化。
Any change which alters the chemical properties of a substance is a chemical change. For example, the rusting of iron is a chemical reaction.
结论该方法采用全物理过程，无任何化学变化及污染，是提取玉米须黄酮类物质的有效途径。
This method is purely physical process, and has no any chemical change and pollution. It is an ideal way to withdraw the flavanone of corn silk.
代谢是生命活动中所有(生物)化学变化的总称。代谢活动是生命活动的本质特征和物质基础。
Metabolism is the total (bio) chemical changes in living organisms and metabolic activities are the basic features of living systems.
化学变化是改变粒子结构、形成新物质的一种变化。
A chemical change is one in which the structure of particle is changed and a new substance is formed.
物质发生物理变化的过程中一定发生了化学变化。
Physical changes occurring substances in the course of a certain chemical changes have taken place.
当物质变成和原来不同的物质时，这种变化是化学变化。
When matter changes to a substance different from what it was, the change is a chemical change.
构造物理化学是研究地壳物质受构造作用产生的物理和化学变化相互关联的领域。
Tectophysicochemistry is a research that deals with the interrelations between physical and chemical changes of crustal materials caused by tectonism.
稻谷在成熟过程中，籽粒内部进行着复杂的生物化学变化的同时，籽粒的干物质逐渐积累和含水率逐渐减小。
There were complicated biochemical changes in rice grains, and dry matter of rice was accumulated and moisture content of rice decreased gradually during rice maturity.
作为一门科学来给化学下定义就是，物质发生了化学变化，这种变化的结果就是不是有可能产生了新的物资。
We may define chemistry as the science in which we deal with the chemical change in matter as a result of which it is possible to form a new substance.
物质变化分为两大类：物理变化和化学变化。
All changes of matter fall into two broad classes: physical and chemical changes.
具体研究方向为：乳粉、乳清、干酪、发酵乳制品加工工艺以及加工过程中的营养及化学变化机理研究、植物蛋白产品开发和乳源生物活性物质制备。
The specific research interests include: milk powder, whey, cheese, dairy processing technology and changing mechanism during processing, development of vegetable protein products.
具体研究方向为：乳粉、乳清、干酪、发酵乳制品加工工艺以及加工过程中的营养及化学变化机理研究、植物蛋白产品开发和乳源生物活性物质制备。
The specific research interests include: milk powder, whey, cheese, dairy processing technology and changing mechanism during processing, development of vegetable protein products.
应用推荐