铝化

A determination and study has been made on the changes of PH concentration and its distribution in the atmosphere inside and outside the storehouse when the storehouse where PH is used to fumigate stored grain pests are tightly closed and ventilated.

储粮害虫防治使用磷化铝熏蒸，在密闭和通风期间，对粮仓内外空间和粮堆的PH_3气体浓度变化规律及其分布情况，进行了测试研究。

The temperature, at which alumina, aluminum fluoride and carbon react to form aluminum sub-fluoride at different pressures, was evaluated with "Substance Gibbs' Free Energy Functional Determinant" method.

摘 要：利用"物质吉布斯自由焓函数法"，讨论不同压力下低价氟化铝生成及分解的热力学条件。

The kinetics model of colloidal particulates aggregation in gelation was built up based on the viscosity change.

根据粘度的变化建立了凝胶化过程中拟薄水铝石胶粒生长的动力学模型。

Experimental results indicate that glutamic acid can increase the decomposition ratio of sodium aluminate at lower concentration. The particle size of gibbsite product is reduced when the additive concentration is 3×103 mol/Lat 2 h. The particle size is enlarged under other conditions.

结果表明：谷氨酸在一定浓度范围内能提高铝酸钠溶液分解率，低浓度时添加效果最佳；添加浓度为3×103 mol/L，反应进行到2 h时产品粒度得到细化，其它条件下产品粒度均得到粗化。

The state of Cu species determine the catalytic performance in hydroxylation of benzene.

从XRD、UV-vis和H_2-TPR表征结果可见，催化剂制备中的焙烧温度、Cu的负载量和ZSM-5的硅铝比可以改变Cu物种与载体的相互作用强弱及Cu物种的分散状态，是影响催化剂苯羟基化反应性能的重要因素。

The company is the product of the ball, inoculant, high-grade ductile iron and aluminum castings, aluminum-magnesium alloy castings, copper alloy castings.

公司主要产品是球化剂、孕育剂、高牌号球墨铸铁、铝合金铸件、铝镁合金铸件、铜合金铸件。

The main content of this paper as follows: The acidic strength, reaction temperature, reaction time of Chlorine-aluminate Ionic Liquids with different structure of cation on the activity of transalkylation of MN with TeMB and the selectivity of 2,6-DMN were studied. The optimum reaction condition was obtained: the molar fraction of AlCl_3 is 0.71, molar ratio of 2-MN and TeMB is 1, the amount of ionic liquid is 32wt%, reaction temperature is 20℃and reaction time is 8h using X-xAlCl_3 and X-xAlCl_3 as catalysts; the optimum reaction time is shortened 6h using Et_3NHCl-xAlCl_3 as catalyst.

本文主要研究了以下内容：分别考察了不同阳离子结构的氯铝酸盐类离子液体的酸强度、反应温度、反应时间等因素对MN和TeMB转移烷基化的催化反应活性和2，6-DMN选择性的影响，优化得到适宜的反应条件为：以X-xAlCl_3和X-xAlCl_3为催化剂时，AlCl_3的摩尔分数x=0.71，2-MN和TeMB摩尔比为1∶1，离子液体用量为32wt％，反应温度为20℃，反应时间为8h；以Et_3NHCl-xAlCl_3为催化剂时，反应时间缩短到6h。

Sixthly, the effects of dealumination and modification of pore of the NH_4Yzeolite on isomerization reaction were studied.

6探索了NH_4Y型沸石分子筛的脱铝改性和孔道修饰的异构化反应效应。

The influence of the amount of catalyst, reaction temperature, molar ratio of β-methylnaphthalene and olefins, reaction time and the amount of solvent has also been studied in detail.

详细考察了三氯化铝催化剂用量、反应温度、芳烯物质的量比、反应时间及溶剂用量对β-甲基萘与长链烯烃烷基化的影响。

The results showed that calcium aluminates powder could be obtained under lower temperature calcination after adding mineralizer to the raw materials.

研究表明：加入矿化剂后，可在更低温度条件下煅烧制备出铝酸钙粉，有利于节能减排。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷