1.
Of or relating to the properties or actions of chemicals.
化学属性或化学变化的，与化学属性或化学变化有关的
2.
All changes of matter fall into two broad classes:physical and chemical changes.
物质变化分为两大类：物理变化和化学变化。
3.
This change of state is a physical change and not a chemical one.
这种状态的变化是物理变化，而不是化学变化。
4.
Chemical changes that give off energy.
释放能量的化学变化
5.
Can you tell a physical change from a chemical one?
你能辩别物理变化和化学变化吗？
6.
These are physical changes while those are chemical changes.
这些是物理变化而那些是化学变化。
7.
This is a chemical change, not a physical one.
这是一个化学变化，而不是物理变化。
8.
Physicals changes have nothing in common with chemical changes
物理变化和化学变化没有共同之处。
9.
Any change which alters the chemical properties of a substance is a chemical change. For example, the rusting of iron is a chemical reaction.
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。
10.
We have seen many chemical changes, from which physical changes are different.
我们见过许多化学变化，它们和物理变化不同。
11.
Any change that results in forming a new substance is a chemical change.
导致一种新物质生成的任何变化是化学变化。
12.
With a change in consciousness, actual chemical changes occur.
靠意识知觉的变化，实际的化学变化出现了。
13.
The changes in matter which we see all around us are of two types, physical and chemical.
我们周围所看到的物质变化有两种：物理变化和化学变化。
14.
A chemical change, especially oxidation, accompanied by the production of heat and light.
氧化伴有发热发光的化学变化，尤指氧化
15.
alter by alchemy, as of chemical elements.
通过化学反应使变化。
16.
Reforming Teaching Methods to Improve Students Understanding of Mathematics;
转化、优化、变化、类化与数学素质培养
17.
On the Change of Attributes of Higher Education from the Perspective of the Change of Universities’ Functions;
从大学职能变化看高等教育属性变化
18.
Electrochemistry method to measure the varies of thermodynamics function in the chemistry reaction
电化学法测定化学反应热力学函数变化值