有毒性的

A very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar.

一种极具毒性的金属元素，有三种同素异性体，砷和砷的化合物用作除草剂、杀虫剂和各种合金，见于毒砂、雌黄、雄黄中。

The comparison between the obtained EC50 values and toxicity data from the literature points out the good agreement between the BOD bottle test (Raphidocelis su.) and those of nine widely used test methods, i.e., Fathead minnow, Vibrio fi., Microtox, Polytox, Spriotox, Shk1, Activated sludge, Daphina ma. and Tetrahymena. In this study, log Kow values of narcosis Ι compounds (using the BOD bottle test and nine bioassays) were reported.

实验中选定DO观测终点所求得的毒性数据与其他物种进行回归分析，回归结果则皆呈现高度相关（R2值≧0.84），这可推论出藻类与其他物种的分析方法（不含Nitrosomonas）的致毒机制有很高的相关性，且可知本试验方法不仅敏感性高且与其他的物种且有良好的相关性可做为替代性试验。

Pokeweed antiviral protein belongs to Ribosome-inactive Proteins. PAP has potent antiviral activity against many plant virus. pT1 was used as the template to amplify the deleted mutant PAP gene (N-deleted and N-,C-deIeted) by PCR and then the two genes were cloned into expression vector. Different IPTG-inducible expression vector containing different deleted mutant PAP gene was constructed and transferred into E.coli strain BL21 (DE3)-plysS.

美洲商陆抗病毒蛋白是一类能很好的抑制植物病毒的蛋白，很早就有报道低剂量的商陆叶片粗粉末就能明显的抑制TMV在菜豆叶片上局部枯斑的形成，PAP缓释剂也已用于病毒病的防治工作，但美洲商陆抗病毒蛋白属于核糖体失活蛋白，它对生长的细胞会有一定的毒性。

"Many more children could be cured without the risk of long-term side effects of treatment if we could identify at presentation subgroups of those who could safely avoid treatment with cardiotoxic chemotherapy drugs and radiotherapy," senior author Kathy Pritchard-Jones, from Royal Marsden Hospital NHS Trust in Sutton, England, says in a news release.

在新闻发布会上，英国萨顿市Royal Marsden医院NHS Trust的Kathy Pritchard-Jones说：如果我们能早期发现，更多的患有〔Wilms瘤〕的儿童可以不必接受长期有副作用的治疗方法，这些孩子可以不必接受有心脏毒性的化疗和放疗的治疗，相对应的是，这种疾病极低的生存率，可以通过早期的强化治疗来改善。

Because of the light weight, carbon nanotubes can easily spread in the air and human lungs leading to toxicity.

一方面，碳纳米管可能在生物医药领域有潜在的应用，另一方面，由于碳纳米管质量轻，容易在空气中传播，很容易经呼吸道进入人体并造成毒性。

Sea anemones have poisonous tentacles , which they use to stun fish in order to eat them.

海葵有具毒性的触须，通常都是用来将鱼刺昏，以便吃掉这些鱼。

When infused into the body, a hemoglobin molecule breaks down into potentially toxic half molecules, or dimmers.

当被注射到体内以后，每个血红蛋白分子会分解成有潜在毒性的半分子，或二聚体。

Here are the regulations which define "hazardous wastes" as those which are corrosive, explosive, ignitable, reactive, or toxic.

这里是把腐蚀性、易爆性、可溶性、反应性或有毒性废物明文规定为&有害废物&的条例。

AN has shown remarkable embryotoxicity by subcutaneous injection.The threshold of teratogenic effect is lower than that by gavage,so AN is a weak teratogen.

结论丙烯腈皮下注射染毒有明显的胚胎毒性，致畸剂量小于经口染毒阈剂量，是一种弱致畸物。

A legume, the Kentucky coffee tree is actually a flowering plant that produces pods containing seeds that are otherwise edible apart from the toxic substance called cystine that it contains, which is poisonous to humans unless the seeds are roasted thoroughly.

一豆科、肯德基咖啡树的开花植物，是制作荚含种子可食，否则除了含有有毒物质，它叫胱氨酸、除非是对人体有毒性种子烧透。

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