水成作用

Pseudo-boehmite was prepared with nitric acid and sodium aluminate under the same precipitation conditions but different ageing and washing conditions. The influences of ageing temperature, ageing time and ageing media were studied. It was shown that pronging the ageing time and increasing temperature lead to improve crystallinity of PB., the pore diameter of PB can be increased after NH4HCO3 is added in the ageing medium.

在相同成胶条件下利用铝酸钠溶液和硝酸制备拟薄水铝石，而在不同条件下进行老化，研究了老化温度、老化时间及老化介质的影响，结果表明延长老化时间、提高老化温度和老化pH值有助于结晶度的提高，使用NH4HCO3等具有扩孔作用的溶液作为老化介质会降低产品的堆密度和增加孔径、孔容、比表面积。

It is formed by be the action of wind and water on rages rocks over thousands of years.

它是由风和水在岩石上几千年来作用而成的。

It plays a key role in converting fats, proteins, carbohydrates and starches into usable energy.

这方面发挥着关键作用转化脂肪，蛋白质，碳水化合物和淀粉转化成可用能量。

Surface modified magnesium hydroxide particles were synthesized by one-step process using magnesium sulfate,ammonia liquor and sodium laurate as raw materials in alcohol-water system ac- cording to the spectra of FTIR,it was inferred that sodium laurate was bound on the surface of Mg_2 particles and an organic coat- ing layer also formed.

0引官Mg2是一种无机添加型无毒阻燃剂，具有阻燃、消烟、阻滴、填充等多重性能，与川3相比，具有高的热稳定性，高效促基材成炭作用和强除酸能力等特性，但也存在颗粒表面亲水疏油、易团聚、难分散、吸湿性强等缺点，导致材料加工成本增加和综合性能降低川。

After process purification DNA needs once more magnetism bead purification processing, the magnetism bead under the specific liquid environment with the DNA adsorption, is fixed under the magnetic field function one side the centrifuge tube, only has DNA and the magnetism bead unifies in the together part is retained, then the use specific elutes the fluid clean, finally uses double steams the water to dissolve DNA, by now the magnetism bead and DNA were separated from, DNA preserved in the liquid, this obtained has purified, the high grade skeleton DNA sample.

在处理洗净DNA 需要一次更多磁性小珠洗净处理之后，磁性小珠在具体液体环境之下以DNA 吸附，是固定的在磁场作用一个边之下离心机管，只有有DNA 并且磁性小珠成一体在部份一起被保留，那么用途具体洗脱流动性干净，最后使用双词根水溶化DNA，在现在以前磁性小珠并且DNA 被分离了从， DNA 被保存在液体，这被获得净化了，高级最基本的DNA 样品。

Runoff: The downward movement of surface water under gravity in channels ranging from small rills to large rivers.

径流：地表的水在重力的作用下以通道的形式向低处流动，由小溪汇聚成大河。

Then, it was condensed with-valine methyl ester to form a chiral imine, which was reacted with allyl zinc bromide in the presence of CeCl3·7H2O to afford the corresponding chiral homoallylic amine with high optical activity.

-N-Boc-3-苯基-2-氨基丙醛与-缬氨基酸甲酯缩合生成手性亚胺，在七水合三氯化铈（CeC13·7H2O）催化以及底物的手性诱导作用下，该手性亚胺与烯丙基溴化锌经不对称加成反应合成了高光活性的单烯丙基化手性胺。

Comparison of different types of stem cutting in rooting induced and analysis the cDNA clones which may be associated with the occurrence of adventitious roots of P.euphratica,the model of ARF were initial establishment of exogenous IBA controlling endogenous IAA occurred threshold and equilibrium,that is,exogenous IBA receiving by receptor of stem cutting,and transfer into the cells,then turn into active IAA by the effects of the POD enzyme.

通过对胡杨3个不定根发生调控培养体系的比较和与胡杨不定根发生可能相关的差异基因的克隆分析，初步建立IBA调控胡杨不定根发生的内源IAA阈值和激素间平衡的模型，即外源IBA通过插穗受体接收，转入细胞内并在POD酶作用下转化成具有活性的IAA，当IAA的水甲在促根的阈值内并保持相对平稳时，则有利于生根；当IAA的浓度增高超过阈值且不稳定时，则抑制不定根的发生。

A predictive model for silica scaling was established according to the solubility product theory.The model was used to predict the quantity of silica scaling in the test site of Xingbei Oilfield in Daqing area.

基于试验区地层岩石及流体特点，对碱、表面活性剂、聚合物及三元复合体系在相关条件下的动态、静态水-岩反应进行了模拟试验，以确定这些因素对成垢作用的影响。

Single component and multi\|component of iron system colloidal catalyst \Ali\|Bu\-3CH\-2CHCH\-2Cl\ were mixed by different ratios in hydrogenated gasoline medium at 25℃.This paper studied the relationship between the nonaqueous systematic electroconductivity and the concentration of catalyst components.In combination with Tyndall effect,polymerization experimental results,Ali\|Bu\-3 existed in associated state and dissociated into ionpair.The reaction between Ali\|Bu\-3 and Fenaph\-2 was the main reaction which formed colloidal core.Ali\|Bu\-3 reacted on CH\-2CHCH\-2Cl and Ali\|Bu\-2Cl was yielded which joined the formation of active center on the surface of colloidal core.The excessive Ali\|Bu\-3 was dissociated into ionpair which formed double electrode layer,and the double electrode layer kept the colloidal particles relatively stable.

研究了在25℃加氢汽油介质中，铁系胶体催化剂［Fenaph2Ali-Bu3―CH2==CHCH2Cl］单组分、多组分按不同配比混合，非水体系电导率与浓度的关系，结合Tyndall效应，聚合实验结果，得出Ali-Bu3以缔合状态存在并解离成离子对它同环烷酸亚铁的作用是形成胶核的主要反应，与氯丙烯反应生成的氯化异丁基铝，在胶核表面参与形成活性中心由过量Ali-Bu3解离的离子对形成的双电层结构，使胶粒保持相对稳定。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。