查询词典 alumina

At last, the effective approach was found that the 024-antibiotic can be purified by freez-dry, methyl alcohol soaking, acetone, chloroform, and methyl alcohol continuously washing, alumina and silica gel column chromatography.

粗提制品的理化性质研究表明，024放线菌所产抗生素为无色晶体，易溶于水，可溶于甲醇和乙醇，且在甲醇中的溶解度较大，不溶或难溶于丙酮、氯仿、正丁醇、乙酸乙酯与苯。

The effects of limestone addition on the strength of alumina cement and the hydration mechanism have been investigated.

研究石灰石作为混合材对铝水泥强度的影响，探讨其水化作用机理。

Used to produce alumina cement, abrasive materials, ceramic industry, as well as a variety of aluminum compounds.

6制造矾土水泥，研磨材料，陶瓷工业以及化学工业可制铝的各种化合物。

Limestone powder was used as a filler to modify high alumina cement .

以CaCO3微粉作改性剂对高铝水泥进行改性。

According to the current official currency exchange rate, China took up 4% in 2003 of the entire world GDP volume, with high ratio of key energy consumption of the one of the world. That is oil takes 7.4%, original coal 31%, iron and steel 27%, alumina 25%, cement 40%.

按现行名义汇率计算，2003年我国GDP约占世界的4%，但重要资源消耗占世界的比重却很高，石油为7.4%，原煤为31%，钢铁为27%，氧化铝为25%，水泥为40%。

"Iron and steel, cement, alumina has been hard braking, the capital also has already begun, how can the housing industry alone?"

&钢铁，水泥，氧化铝已急刹车，资本也已经开始，如何才能单独住宅产业？&

That is oil takes 7.4%, original coal 31%, iron and steel 27%, alumina 25%, cement 40%.

我国用水总量与美国相当，但GDP仅为美国的1/8。

Portland cement was used as cementations materials in developing foamed concrete, and some high alumina cement and lithium salt were added into Portland cement to adjust the time of setting in order to match the stable time of foam.

以普通硅酸盐水泥作基材制备泡沫混凝土，为了与泡沫的稳定时间相匹配，研究采用在普通水泥中掺入一定量的高铝水泥和碳酸锂来调整水泥浆的凝结时间。

Portland cement, Alumina cement, Low cement castable

硅酸盐水泥，矾土水泥，低水泥浇注料

Pure calcium aluminate cement,high-temperature alumina micropowder

纯铝酸钙水泥，高温氧化铝微粉

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。