有毒物质

The real truth: these contrails are actually a toxic substance, or virus, deliberately sprayed upon an unsuspecting populace in order to "weed out the old and the sick".

真相是：这些尾迹实际上是种有毒物质，或者病毒。被故意投放在不知情的民众上方以除去那些老弱病残者。

Rice production and sustainable development for agriculture in China waslimited by poor quality of gleyed paddy soils, such as the accumulation of reductivesubstance, low availability of soil nutrients and declined soil productivity, due to poordrainage. In the past, researches focused more on engineering technology to improvegleyed paddy soils.

潜育性稻田由于其排水不畅，造成稻田土壤通气不良、还原性有毒物质累积、养分有效化过程受阻以及土壤生产力下降等一系列问题，严重影响我国的水稻高产稳产和农业可持续发展，过去的研究仅局限于工程措施改良潜育性稻田，对施肥等农艺措施研究不够。

GSTs is induced by many factors, its function is to detoxify poisonous substance, such as pesticides, herbicides, carcinogens and mutagens.

GSTs可受多种因素的诱导，对一些有毒物质，包括农药、除草剂、致癌物和诱变剂等起到解毒的作用。

So companies are now searching for new ways to assess a person's exposure to the toxicants in smoke.

因此公司正在研究新的方法来评估对暴露在烟草有毒物质中的人的影响。

Objective: To establish a method for deterninating toxicants in workshop air.

目的：建立车间空气中有毒物质的测定方法。

Use of fish toxicants in the Province of Quebec.

使用有毒物质的鱼类在魁北克省。

Contamination of the aquatic environment by toxicants.

污染水环境的有毒物质。

The study will compare the levels of biomarkers in urine to see whether people smoking modified cigarettes are exposed to lower levels of toxicants or not.

这项研究将要比较尿液中生物标记物的水平来看吸食改进型香烟的人暴露是否在更低水平的有毒物质。

In this paper a method for calculating risk of exceeding criterionin river was put forward on the basis of mathematical simulation analysis for toxicants'leaking behaviour.

在对有毒物质河流泄漏行为进行数学模拟分析的基础上，提出了一种计算河流断面超标风险的方法。为进一步确保饮用水水质的安全提供了可靠保证

The methed is suitable to measure 4 kinds of toxicants in the air at a workplace.

该方法适合工作场所中多种芳香族胺类有毒物质测定。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐