情绪低落会产生强大而致命的有毒物质。

Emotional upsets generate powerful and deadly toxic substances.

面对食物中的有毒物质，我们应该怎么做?。

How should we tackle toxic substance contained in food?

车间空气中有毒物质测定采样规范。

Workplace air-Determination of toxic substances-Sampling strategy.

车间空气中有毒物质的测定.收集器

Workplace air . determination of toxic substances . collectors

车间空气中有毒物质测定采样规范.

Workplace air - Determination of toxic substances - Sampling strategy.

小小一根香烟中包含了4700多种危害你健康的有毒物质。

More than 4, 700 toxic substances against you.

美众议院与参议院各自通过了明年的控制有毒物质的法案。

The House and Senate each passed bills the next year to control toxic substances.

双酚A，在许多塑料产品中常用的一种物质，现在已经被加拿大写在有毒物质的清单上了，但是，在美国，它仍然被认为是安全的。

Bisphenol A, a common compound found in many plastics, has been listed as a toxic substance in Canada but is still deemed safe in the U.S.

双酚A，在许多塑料产品中常用的一种物质，现在已经被加拿大写在有毒物质的清单上了，但是，在美国，它仍然被认为是安全的。

Bisphenol A, a common compound found in many plastics, has been listed as a toxic substance in Canada but is still deemed safe in the U. S.

方法按照《工作场所空气中有毒物质检测方法研究规范》的要求进行实验。

Method This method is based on Standardization of methods for determination of toxic substances in workplace air.