毒性

Although the derivatives have lower toxicity, the curative effects are often lower than that of nitrogen mustard. And the toxic-side effect of the derivatives, such as bone marrow inhibition, cross-resistance, and mutation are still serious.

然而不幸的是这一问题并未得以解决，新的氮芥衍生物的毒性虽然小于氮芥，但细胞毒作用常低于后者，并且发现新的衍生物仍有相当的毒副作用，如骨髓抑制，交抗，致突变作用等。

The smoke of cigarette contains extremely toxic Nicotine , Tar, nitrosamine ,Carbon monoxide and Radiation. This substances are directly or indirectly lead to lung cancer.

香烟烟雾中含有毒性极大的尼古丁、焦油、亚硝胺、一氧化碳、放射性物质，这些物质都是直接或间接导致肺癌发生的凶手。

The virulent experiment showed that ASJY mixture is safe and non-poisonous.

急性毒性实验表明，安神降压合剂安全无毒性。

The process is environmentally friendly, noncarcinogenic, noncorrosive at use concentrations, and does not leave any toxic residues.

灭菌过程使用的浓度对环境无害、非致癌、无腐蚀性，而且不会遗留任何毒性残余物。

The results of accumulative toxicity test indicated that the humic acid extracted from brown coal was noncumulative.

结论］褐煤中提取的腐植酸属于实际无毒类物质，并无蓄积毒性作用。

Interestingly, the nho1 mutant also supported the growth of Pseudomonas fluorescens, a plant associating, nonpathogenic bacterium. However, NHO1 does not appear to play a role in the basal resistance to virulent Pseudomonas bacteria.

有趣的是nho1突变体对于一种应依附于植物的非致病菌——荧光假单孢菌是感病的，然而对于毒性假单孢菌，NHO1似乎并没有起到什么抗性作用。

A nonpersistent organophosphorous pesticide ,C4H7O4Cl2P,of low toxicity to human beings.

二氯松一种非持久性有机磷杀虫剂，C4H7O4Cl2P，对人的毒性低

In catalysis, in order to dispel the toxic issue of the catalyst and obtaining the advance and rationality of produce procedure adopted the nonpoisonous catalyst CH-2 to make PFS, which can expand the range of application of PFS and offer more effectively utilization in pyrite cinder for technical support and theoretical foundation.

在催化氧化聚合工艺中，采用了一种无毒催化剂CH-2，以消除催化剂的毒性问题，获取制备工艺的先进性和合理性，扩大PFS的应用范围，为硫铁矿烧渣的更有效利用提供技术支持和理论依据。

It is caused by a wide variety of prescription and nonprescription medications, nutritional supplements and herbals.

中毒性肝损伤是由各种各样的处方和非处方药物，营养补给和草药引起的。

Purification and analysis of AT-toxin Firstly, we detected the components of protein and nonprotein, the results showed that AT-toxin is a nonprotein. We have carried out the liquid chromatogram analysis of the toxin. The result indicates that there are many components in this toxin and there are four kinds of components which content is more than others. At last, we have the experiment of separating the cpmpositions with the silica gel and we get four components which are active.

AT-毒素的初步纯化与分析为确定AT-毒素的组分，首先对毒素的蛋白质和非蛋白质组分的毒性进行了测定，结果表明：AT-毒素活性组分为非蛋白质；对毒素进行硅胶G薄层层析，初步分离得到10种组分，其中四种组分具有活性：组分Ⅵ、Ⅶ、Ⅷ、Ⅸ，初步说明了该毒素含有多种组分；进一步对该毒素进行液相色谱分析，也发现该毒素含多种组分，其中四种组分峰高和峰面积较大，含量较高；其致毒活性可能是由这些组分协同作用的结果，它们之间可能存在正协同或负协同作用关系。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。