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Polystyrene-MMT nanocomposites were prepared by free radical polymerization of styrene containing dispersed clay. The organophilic MMT particles were easily dispersed and swollen in styrene monomer.

采用双-苯基二甲基十八烷基溴化铵作为有机插层剂对钠基蒙脱土进行了有机化处理,该有机化的蒙脱土粒子在苯乙烯单体中很容易地均匀分散并形成稳定的胶体溶液。

"Tin bonds with carbon to form organotin compounds, used to stabilize PVC and in biocides and fungicides."

锡与碳的键合形成有机锡化合物,用于稳定PVC材料,还用在杀虫剂和杀真菌剂中。

A phenolsulphonephthalein dye in the kit forms a very stable blue colored complex specifically with free calcium.

试剂中phenolsulphone-phthalein 染色剂专门与游离的钙离子形成稳定的蓝色。

The system is composed of polysilicic ions and polyaluminous ion s with the participation of polyaluminous ion s, the Si-O specific line which is inherent in the examination of infrared spectrum is gradually reducing and becoming a broad belt, the non-ion bond reactions between polysilicic ion and polyaluminous ion is proved by observasion with electron microscopy.

稳定胶体态的硫硅聚铝和氯硅聚铝是性能优良的絮凝剂,体系中含有聚硅离子和聚铝离子。红外光谱测试固有的Si—O特征峰随聚铝离子的引入逐渐衰减,变成较宽的带,聚硅离子与聚铝离子间存在着一种非离子性的健合作用,电镜摄像观察证实了这一结论

Ettringite is not stable in concrete, however,it always tends to recrystallize.

文章摘要:钙矾石是水泥重要的水化产物之一,也是铝酸盐类膨胀剂产生膨胀的主要物质,但它在混凝土中并不稳定,容易发生重结晶。

Rhodococcus sp.PR-1 with high capability of demulsification on a surfactant-stabilized kerosene-water model emulsion was isolated from sewage of Dagang oil field.

利用乳化剂Span 80配制出一种稳定的煤油-水乳浊液作为模型乳浊液,进而从大港油田废水中筛选出1株破乳能力较强的红球菌PR-1。

METHODS: For 35 eyes of 31 cases of complicated cataract in uveitis with small pupil, the posterior synechia was separated with the help of viscoelastics or papillary collar resection of iris.

对葡萄膜炎并发性白内障小瞳孔患者31例35眼,在葡萄膜炎控制稳定,炎症消退3mo后,借助粘弹剂分离虹膜后粘连或施行虹膜环形切除,再行白内障超声乳化或囊外摘出及人工晶状体植入。

The experimental results shows, if the ratio between MS-1 and OP-10 rangs from 1:1 to 3:l,and the total dosage of them is about 20% of Octamethylcyclotetrasiloxane (D4 ) in quality, we can obtain a kind of stable seeded emulsion of organic silicone modified acrylic ester emulsion. At the same time, if the ratio between MS-1 and Tetramethylammonium Chlorideis l:1.7,the total dosage is about 50% of D4 in quality; the ratio between MS-1 and Cetyltrimethylammonium Chlorineis 7:1, the total dosage is about 25% of D4 in quality,we can also obtain stable seeded emulsions. But if the complex emulsifier system is made of TMAC and OP-10, MS-1 and Peregal O or CTAC and Span-80, we can not synthesize any kind of satisfactory seeded emulsions.

实验结果表明:当MS-1与OP-10的质量比为1:1~3:1,总用量为八甲基环四硅氧烷(D_4)的20%左右时,可合成稳定性良好的硅丙种子乳液;MS-1与四甲基氯化铵的质量比为1:1.7,总用量为D_4的50%左右,MS-1与十六烷基三甲基氯化铵的质量比为7:1,总用量为D_4的25%左右时,亦能得到稳定的硅丙种子乳液;而TMAC与OP-10、MS-1与Peregal O以及CTAC与Span-80的复合体系作为乳化剂时均不能得到满意的硅丙种子乳液。

Some additives that could enhance the enzyme stability were screened through single factor experiments, such as 5 mmolL^(-1) Ca(superscript 2+), 20 mgmL^(-1) trimethylene glycol-single methyl ether, 0.01% 4-formyl phenyl-boron dihydroxide, 1% glycerine.

通过单因素实验得出了对碱性蛋白酶稳定效果较好的几种保护剂:5mmolL^(-1) Ca(上标 2+);20mgmL^(-1)微胶粒抑制剂丙二醇-单甲醚;0.01%可逆蛋白酶活性抑制剂4-甲酰苯基硼酸;1%甘油。

EDTA was used as masking agent, and trisodium citrate as total ion strength adjustment buffer was added to stabilize the ionic activity coefficient. The pH was controlled at about 5, the results were directly obtained by Gran graphing method.

以EDTA做掩蔽剂,加入柠檬酸三钠为总离子强度调节剂,使离子活度系数相对稳定,pH值控制在5左右,用Gran氏作图法直接查得结果。

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推荐网络例句

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。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。