1.The penton base and fiber are toxic to cells.

1.基底突起对细胞有毒性作用。

2.Serious person can have haematemesis, melaena, dehydrate even, and toxic reach shock to wait.

2.严重者可有呕血、黑粪、甚至失水、以及中毒及休克等。

3.Discovery of subspecies toxic to dipteran and coleopteran insects in 1977 and 1983, respectively.

3.1977年以前只发现13个亚种，而且这些亚种都只对鳞翅目害虫有效。

4.Microgram for microgram, beryllium is one of the most toxic elements on the periodic table.

4.一微克，又是一微克，铍是周期表上最有毒的元素之一。

5.Biological powdered activated carbon enhanced the growth of nitrifier by absorbed toxic or inhibitory substance.

5.生物活性炭吸附了对硝化产生毒性抑制的物质、强化了硝化在炭表面的生长。

6.Alpha-Amanitin : This is a simple, natural, toxic peptide produced by a mushroom.

6.3 透明蝇毒素：这是一种有蘑菇产生的简单，天然的有毒蝇氨酸。

7.They work in the sealless magnetic drive pumps,which transporting volatile,flammable,explosive and toxic solutions with no leakage.

7.它无须直接的机械联接，而是利用稀土永磁体之间的相互作用，利用磁场可透一定的空间距离物质材料的特性，进行机械能量的传送。

8.The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

8.以苯乙酸乙酯乙醇胺为原料合成了苄青霉素低毒前体苯乙酰基乙醇胺。

9.However, chlorin will interact with the organics remained in the water and form halohydrocarbon, chloroform and other cancer-causing toxic compounds.

9.但同时，氯与水中残留的有机物相互作用，会形成卤代烃、氯仿等有毒的致癌化合物。

10.A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.

10.如乙醇的反应产物包括乙醛，乙酸乙酯，乙酸甲酯，缩醛等一系列有害物质。

11.Diester deoxyaconitine is very toxic.When deoxyaconitine was transformed into mono-ester aconitum alkaloids and lipo-alkaloids by human intestinal bacteria, the toxicity decreased.

11.双酯型的去氧乌头碱的毒性较高，当它被肠内细转化为单酯型脂类生物碱时会使其毒性降低。

12.Conclusions Dragons blood powder has broad-spectrum sterilization.It can clear toxic materials,remove the necrotic tissue,enable convergence wound and scabbing without skin grafting,markedl...

12.结论龙血蝎粉有广、清热解毒、去瘀生肌作用,能使创面自行收敛结痂,无需植皮,明显缩短病程。

13.Method Hepatic and renal functions,and tissue biopsy were measured in rats with therapeutic,toxic and lethiferous dose treatment after a period of time.

13.分别测定治疗剂量、中毒剂量、致死剂量组小鼠在用药一段时间后的肝肾功能,并进行组织病理学检查。

14.There are some toxic substances and antinutritional factors in flaxseed, such as antivitamin B6 factors and cyanogenetic glycoside, Which limit the application of flaxseed.

14.亚麻籽中毒性物质抗营养因子（如抗生素B6因子、生氰糖苷等）的存在，尤其是生氰糖苷的毒性限制了亚麻籽的使用。

15.Wooly Locoweed, Utah, 1999 "A pretty poison, woolly locoweed, flowering during autumn, can make cattle that eat its toxic leaves go berserk and die."

15.毛茸茸的疯草，犹他州，1999这棵毛茸茸的疯草是一种美丽的毒草，它在秋天开花，牲畜吃了它有毒的叶子就会发疯而死掉。

16.In mice, rabbits and cats, galanthamine hydrobromide was 2-8 times more toxic than lycoramine hydrobromide. The therapeutic index of the two alkaloids was similar.

16.力可立敏对小自鼠、家兔猫的急性毒性作用此加兰他敏小2—8倍,其治疗指数接近加兰他敏.

17.Among 25 patients, 16 manifested clinically as streptococcal toxic shock syndromes (STSS) and 9 streptococcal meningocephalitis syndrome, The mortality was 81.25% and 11.11% respectively.

17.2 5例患者中,临床表现为中毒性休克综合征的16例,链球性脑膜脑炎综合征的9例,两者的病死率分别为81.25%11.11%。

18.The peko-peko's skin is toxic, and most predators leave it alone. Sentient hunters prey on the peko-peko to harvest the amazing anti-venin the animal secretes.

18.皮可皮可的皮肤有毒，大部分的掠食者都不敢招惹牠，知道此事的猎人猎捕皮可皮可来获取牠分泌的神奇抗毒素。

19.Chronic and toxic can have ball backsight neuritis, inspect dish of oedema, retinal hemal convulsion, haemorrhage, oozy, eye shot is short of caustic and centrality stricture.

19.慢性中毒可有球后视神经炎，视盘水肿，视网膜血管痉挛、出血、渗出，视野缺损向心性狭窄。

20.It reports the synthsis of a new low toxic organic sulphur germicide pyruvoyl - hydrazono - 1, 3 - ditholane.The stracture of objective compound was identified and determined.

20.报道了一种新型、低毒的有机硫剂——丙酮酸缩肼叉-1，3-二噻茂烷的合成，并对目标化合物的结构进行了分析。