查询词典 aluminum

In inorganic chemistry experiment teaching material,"the Measurement of the Molar Gas Constant by Displacement method" uses the magnesium method of substitution or the aluminum method of substitution.

摩尔气体常数的测定方法很多，在无机化学实验中，常采用置换法来测定。其方法为：取一定质量的活泼金属，与一定体积的已知浓度的酸反应，在一定的温度和压强下，测得置换出氢气的体积。

A thick aluminum skeleton called space frame, durable, moldable and light weight.

他们用一个厚且耐用，重量轻且可以改变形状的叫做空间架构的铝骨架来解决问题。

Within 15 minutes I had some nice molten aluminum.

在15分钟内我有一些不错的熔化铝。

The modified method of aluminum tripolyphosphate with molybdate compound was introduced.

介绍了用含钼化合物对三聚磷酸铝进行改性的方法。

A series of inhibitors were made from different organic carboxylic acids as monoacid and binary acid to prevent the corrosion of cast aluminum in neutral cooling water.

为了提高中性冷却水系统中铸铝的耐腐蚀性能，通过极化电阻、稳态极化曲线和交流阻抗等电化学方法研究了不同比例一元、二元有机羧酸混合溶液对铸铝的缓蚀性能。

In this paper, the Al~(3+)-doped ZnO thin films were prepared on Na-Ca-Si glass substrateby Sol-Gel process from 2-methoxyethanol solution prepared by Zinc acetate as premonitory, monoethanolamine as stabilizator and aluminum chloride reaction.

本文采用溶胶-凝胶工艺在普通Na-Ca-Si玻璃基片上成功地制备出Al~(3+)掺杂型ZnO薄膜。

The effect of monosodium glutamate on aluminum absorption was investigated in vitro.

用翻转的离体肠断研究了谷氨酸钠对铝吸收的影响。

The content of aluminum in water was determined by the flow injection spectrophotometry using morin as chromogenic reagent.

以桑色素作显色剂，采用流动注射分光光度法测定水中铝的含量。

The present invention adopts the technical proposal of adopting ZSM-5 mesoporous molecular sieve raw powder with a silicon-aluminum mol ratio SiO2Al2O3 of 20 to 1000 and a weight percentage of 20 to 100 percent as well as at least one caking agent selected from SiO2, clay and Al2O3 to extrude, tablet or spray into shape; then treating for 1 to 8 hours by 0.1 to 3 mol/l of at least one ammonium liquor from ammonium nitrate, ammonium chloride or ammonium sulphate or 0.1 to 8.5 mol/l of at least one acid liquor from muriatic acid, nitric acid, vitriol or acetic acid under a temperature of 20 to 90 DEG C; then using steam to treat for 2 to 15 hours under the temperature condition of 400 to 700 DEG C; using a liquor of 0.1 to 3mol/l selected from at least one of oxalic acid, citric acid or maleic acid under a temperature condition of 20 to 90 DEG C to dip for 2 to 5 hours to obtain the modified molecular sieve catalyst, thus better solving the problems.

本发明通过采用硅铝比SiO2/Al2O3为20～1000重量百分比计20～100％的ZSM-5介孔分子筛原粉与余量的选自SiO2、粘土或Al2O3中至少一种粘结剂挤条、压片或喷球成型；再经过0.1～3摩尔/升选自硝酸铵、氯化铵或硫酸铵中的至少一种铵溶液或0.1～8.5摩尔/升选自盐酸、硝酸、硫酸或乙酸中的至少一种酸溶液在温度20～90℃下处理1～8小时；然后在温度为400～700℃条件下水蒸汽处理2～15小时；再用0.1～3摩尔/升选自草酸、柠檬酸或马来酸中至少一种在温度为20～90℃条件下浸渍2～5小时得所需改性分子筛催化剂的技术方案较好地解决了该问题，可用于甲醇转化制丙烯的工业生产中。

Rthersee 09's interior is very similar to the GTI's, right down to the nappa leather and aluminum accents.

的马可波罗W rthersee 09的内部是非常类似倡议的，有权到纳帕皮革和铝的口音。

In this work the bleaching kinetics of bamboo SCMP in peroxide were investigated,and the elimination mechanism of its chromophore was also discussed.

本文研究了竹子磺化化机浆在 H_2O_2漂白时的反应动力学，并就其发色基团的脱除机理进行了探讨。

While holding him in my arms, I said,"Look, Kathy, a nice Smartie for John" and put it into John's mouth.

在我把约翰搂在怀里的时候，我说，&你看，凯西，我给约翰一颗多棒的聪明豆，&说着就把聪明豆塞进约翰的嘴里。