查询词典 alumina

A precise method was established as follows: hydrogenperoxide should be separated from flavonoids by passing the flavonoid solutionsthrough alumina columns before the measurement and the amount of hydrogenperoxide generated from self-oxidation of the flavonoids should be deducted.

提出并确立了正确的方法：准确测定黄酮类化合物辐照体系中的过氧化氢G值，必须先用柱色谱法将过氧化氢从辐照体系中分离出来，再扣除黄酮类化合物因自氧化而产生的过氧化氢的量，才能得到正确的过氧化氢G值。

Thanks to the multitude of uniform Alumina Fiber on the rod tips, stable and uniform finishing can be achieved; keeping superior grinding performance.

得益于众多的氧化铝纤维均匀的构成，所以能提供稳定的卓越的磨削性能。

The self-sharpening action of the cutting edge on the Alumina Fiber Rod tips and continuous cutting edges provides superior grinding performance.

氧化铝纤维在整个研磨过程中始终保持良好的自锐性，不断提供卓越的磨削性能。

An intermediate oil type hydrocracking catalyst has carrier prepared from amorphous aluminosilicon, alumina, assistant phosphorus, adhesive and extruding aid through mixing, shaping, drying, and then hydrothermal treating, and contains the oxides of metals in families VIB and VIII, and phosphorus.

本发明涉及一种中油型加氢裂化催化剂及其制备方法，催化剂所用载体为无定形硅铝、氧化铝和助剂磷。无定形载体是将无定形硅铝、氧化铝、助剂、粘合剂和助挤剂混合、成型、干燥后进一步水热处理而制得的。

The development of the alumina industry must be in line with the pace of the electrolytic aluminium industry, said Wen.

文显军称，氧化铝行业的发展必须同电解铝行业的发展步调一致。

Speaking at Metal Bulletin's 13th bauxite and alumina conference in Athens, Shah said curtailments at refineries may follow, particularly at non-government-owned operations in China, because the lower prices will make plants uneconomical.

在雅典举行的金属导报第13届铝土矿和氧化铝会议上，Shah表示精炼厂仍将继续减少，特别是在中国非政府控股的工厂内，因为价格偏低将使工厂不太经济。

On the basis of the crystallography, however, systematic investigation on crystalline habit of oxide crystal synthesized by hydrothermal processing, including single crystals and crystalline grains in ultrafine ceramics powder, is also a noticeable subject with theoretical and applicable significance, which has been studied in this article according to plentiful data of experiments obtained in research on crystal defects in synthetic smoky quartz, preparation of amethyst quartz and ultrafine zirconia and alumina powder by hydrothermal processing.

但以结晶学为基础，较系统地研究水热条件下氧化物晶体，包括单晶和陶瓷微粉中的晶粒的结晶习性和结晶动力学仍是一个值得重视的、既有理论意义又有应用价值的课题。本文通过对水热法人工烟水晶中的缺陷、人工紫水晶的生长、水热法超细ZrO〓粉体和Al〓O〓粉体的制备等研究，以较为丰富的实验资料基础上，在这一方面进行了探讨。

Aluminium hydroxide, the precursor of alumina, was synthesized by precipitation reaction of the aluminium nitrate and sal volatile.

利用硝酸铝溶液和碳酸按溶液的沉淀反应制备一种氧化铝的前驱体－氢氧化铝。

QVC products are used by polyvinyl chloride, alumina, detergent and pulp and paper manufacturers.

卡塔尔乙烯基公司的产品主要被聚氯乙烯、氧化铝、洗涤剂和纸浆造纸生产商采用。

Bulk rock chemistry of Hujialing garnet clinopyroxenite in Rizhao of the Sulu ultrahigh-pressure metamorphic belt is rich in fusible composition and low in refractory composition when compared with that of the primary mantle. Whole rock has 44.04%~50.50% SiO2, high MgO(12.77%~18.73%), high GaO/Al2O3 (1.6~8.0), low alkali and Mg(superscript #)(74.82~86.13), which shows that the rock has an affinity to alumina-depleted komatiite.

与原始地幔相比，苏鲁超高压变质带的日照胡家岭石榴单辉辉石岩体全岩化学成分易熔组分均较高，而难熔组分均较低，全岩的SiO2含量为44.04%~50.50%，高MgO(12.77%~18.73%)，高CaO/Al2O3(1.6~8.0)，低碱，Mg的变化范围为74.82~86.13，成分特点类似铝亏损型科马提岩。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。