New Chemical Substance的意思|示意

In addition, the present status of implementation of the new chemical substance notification and its effects on chemical environmental management in China is given briefly.

文中还介绍了我国新化学物质申报审批制度的实施现状及其对化学品环境管理的影响。

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.

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。

Whenever a chemical change takes place , There is a new substance formed .

每当发生 化学变化时，就有一种新的物质生成。

A chemical change is one in which the structure of particles is changed and a new substance is formed.

化学变化是一种改变粒子结构、形成新物质的一种变化。

Objective To prepare a new multi functional sampler, which can better reflect the level of dust and chemical substance inhaled by exposed human bodies.

目的研制一种多用途，更能反映人体实际接触或吸入尘毒水平的采样仪。

We can get a new substance if we incorporate a chemical substance with others.

如果我们把一种化学物质和其他化学物质混合就能得到一种新物质。