化学元素

Using such methods as geochemistry engineering,plant reclamation technology etc,to make the harmful element harmless or to remove the harmful elements can effectively prevent the detonation of "the chemical time bomb" and eliminate the threat of "time bomb".

化学物质在土壤中的累积与储存，在相当长的时间内不表现为危害，但当储存量超过土壤或沉积物承受能力的限度时，或者当气候、土地利用方式发生改变时，原本稳定的化学元素会突然活化，导致

We may define chemistry as the science in which we deal with the chemical change in matter.

我们会把化学定义为科学，在这个定义过程中我们与物质中变化的化学元素打交道。

It is the discovery of a new chemical element.

它是一种新化学元素的发现。

This chemical element is harmful to human beings, but that one is not.

这种化学元素对人体有害，而那种是不会有害的。

Scientists have been able to create a chemical element that can fight cancer cells.

科学家们已经研制出一种可以杀死癌症细胞的化学元素。

The mixture of the two kinds of chemical elements creates a new element.

这两种化学元素混合在一起会产生一种新的元素。

Hydrogen is the lighted chemical element of all.

氢是所有化学元素中最轻的元素。

Mercury is a kind of chemical element.

水银是一种化学元素。

Human's body is composed by the compound,while the compound also is composed by the chemical element.

人的身体是由化合物组成的，而化合物又是由化学元素组成的。

In the environment,some chemical element that is too many or lacks can affect the human body health.

环境中某种化学元素过多或缺乏都会影响人体的健康。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。