The dosage of raw materials, the selection of low-toxic mixed solvent and its formulation, the selection of modifying agent, reaction temperature and the time were studied respectively.
对原料的用量、低毒性混合剂的选择和配比、改性剂的选择、乳化剂的选择、反应温度和反应时间的选择进行了优化试验。
As one of effective fire extinguishing chemicals halogenated alkanes (ha) are effective, low-toxic, corrosion-free, stainless, with best chemical stability and safety for long-term storage.
卤代烷灭火剂具有高效、低毒、无腐烛、不污损保护对象、化学稳定性好、便于长期储存等优点。
The triphosgene, being as the substitute for phosgene and diphosgene in synthesis, is not only low-toxic but also safe and convenient to use with mild conditions, good selectivity and high yields.
三光气作为剧毒的光气和双光气在合成中的替代物，不但毒性低，使用安全方便，而且反应条件温和、选择性好、收率高。
If there's smoke in the cabin, get low and crawl below the level of the smoke and toxic fumes, so you can breathe until you get out of the plane.
如果机舱里有烟雾，把身体放低到烟雾与有毒气体的下面爬行，这样你能在你离开飞机前保持呼吸。
Another concern is the disposal of some geothermal fluids, which may contain low levels of toxic materials.
另一个关注点是某些地热流体的处理，这些地热流体会含有微毒物质。
The respiratory and other subcortical centers likewise show stimulation after low doses and depression with higher or toxic doses .
呼吸中枢和其他皮层中枢同样表现为小量时兴奋，大量或中毒量抑制。
The last three are toxic in large doses, and black cohosh should be avoided if a woman has low blood pressure.
后三种大剂量使用时是有毒的，而且低血压妇女应该禁止使用总状升麻。
The Treasury Department says it will offer low interest loans to private investors so they will buy billions of dollars in toxic assets and get American Banks lending again.
财政部表示，将为私人投资者提供低息贷款，以购买数十亿的有毒资产，重振美国银行借贷业务。
The alumina ceramics is gel-mould cast with low toxic N methylolacrylamide system. This paper reports the investigation on the preparation of alumina suspension and its solidification process.
采用低毒的N羟甲基丙烯酰胺体系凝胶注模成型氧化铝陶瓷，研究了该体系下浓悬浮体的制备及固化过程。
Leading scientists - who argue that their data show bisphenol a produces toxic effects in animals at incredibly low doses - have criticized the way the report has been produced.
一些主要科学家认为试验数据显示极低剂量双酚a会对动物产生毒性作用，因此他们对该报告所采用的方法提出质疑。
Imazapic, Imazapyr and Imazamox are highly effective, low toxic and environments kindly Imidazolinone herbicides which have not been produced in our country.
甲基咪草烟，灭草烟酸和甲氧咪草烟是高效、低毒、对环境友好的咪唑啉酮类除草剂，国内尚未工业化生产。
Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity.
结果各样品中易挥发的主要成分为甲苯、丁酮、汽油、醋酸乙酯、丙酮等，其急性毒性分级均为低毒。
A review was given on the progress of the research on low toxic and nontoxic passivation processes for electroplated zinc and zinc alloy coatings.
综述了国内外镀锌及锌合金层主要的低毒无毒钝化工艺。
But the rate of natural shrinkage of their bad Banks is low and the remaining dud assets are hard to sell at reasonable prices They're called toxic for a reason.
但这些公司的坏账银行自然缩减率很低，且残留的无用资产很难以合理价格出售。这些资产被戏称是有毒的，并非空穴来风。
Phillip Landrigan: However, we know so little about the toxic effects of these chemicals in humans, that just because the level is low doesn't mean you don't have to worry about it.
菲利普·兰德里根：但是目前人们对这些有毒化合物的危害知之甚少，不能因为它在人体中含量低就掉以轻心。
The respiratory and other subcortical centers likewise show stimulation after low doses and depression with higher or toxic doses.
呼吸中枢和其他皮层中枢同样表现为小量时兴奋，大量或中毒量抑制。
Trichokirin inhibited protein synthesis potentially in rabbit reticulocyte lysate but was relatively low toxic to intact cells.
这种毒素在无细胞体系中对蛋白质生物合成具有明显的抑制活性而对完整细胞的毒性很低。
Results: The sporadic outbreak of vibrio cholera has some characters: including non toxic strain infection, low detection rate of plasmid and ct gene and increase of drug resistance.
结果：散发性霍乱以无毒株为主，质粒及肠毒素基因的携带率极低，但耐药性有所增加。
Adding amylum or oxidized amylum in the synthesis process of low toxic urea-formaldehyde resin can improve pre-press capability and bonding strength of plywood.
在低毒脲醛树脂胶粘剂合成过程中加入淀粉或氧化淀粉，能有效地改善胶合板板坯的预压性能和胶合板的胶接强度。
The selection principal of low toxic mixed solvent of CR adhesive is depended upon hydrogen bond index and solubility parameter of the solvent.
氯丁胶粘剂的低毒混合溶剂的选择原则是：根据溶剂的氢键指数及溶解度参数。
A kind of modified low toxic urea-formaldehyde resin was synthesized.
经过大量试验合成了一种低毒改性脲醛树脂。
Based on reaction mechanism of UF, low toxic and modified technology of UF were discussed.
从脲醛树脂生成机理出发，介绍了脲醛树脂的低毒改性技术。
Modifier was added on medium-term of synthetic process with its adding amount being 3%, a favourable low toxic modified UF resin adhesive could be synthesized on the basis of colloid theory.
应用胶体理论，在树脂合成过程中期加入改性剂，改性剂添加量为3%，合成了性能良好的低毒改性脲醛树脂胶。
In additionl, a new low toxic passivation process was advanced which improved the adhesion and corrosion resistance of blackening film greatly.
此外，提出了一种新型低毒钝化工艺。 大大提高了发黑膜的附着力和耐蚀性。
Our drug has high efficency. Low toxic. Long efficacy. and sure safety to natural enemies, human and livestock.
本品高效、低毒、持效期长，无残留，对天敌、人、畜安全，是一种绿色无公害农药。
Objective To explore toxic effects of low level lead on blood pressure and hemoglobin as well as microcirculation.
目的探讨低浓度铅影响血压和血红蛋白的可能机制及其影响微循环的作用方式。
This article makes a deep study of formulated JN-90 low toxic urea-formaldehyde resin with different filler and extender and manufactured board using different tree species veneer.
就JN—90低毒性脲醛树脂胶铁调胶与不同树种单板的制板工艺进行了深入研究。
Treating coking sewage of high toxic and low biological by using SBR process had characteristics such as flexible and stable operation.
采用SBR工艺处理毒性大、可生化性差的焦化污水具有操作灵活、运行稳定的特点。
The polysaccharide of fungal cell wall is a particular component of fungal life, so the antifungal agents that act at fungal cell wall polysaccharide are high effective and low toxic.
真菌细胞壁多糖是真菌的独有成分，因此作用于细胞壁多糖的抗真菌药物具有高效低毒的特点。
At low concentrations, enzyme activity declined sharply, leveled off gradually with the increasing of toxic concentration.
在低浓度时，酶活性急剧下降，随着毒物浓度的增加逐渐趋于平缓。
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