查询词典 magnesium

L-aspartic acid s are intercalated into magnesium aluminum layered double hydroxidesby using the methods of reprecipitation and coprecipitation.

以镁铝水滑石为插层主体、L-天冬酸离子为插层客体，分别用返混沉淀法和共沉淀法制备了 L-天冬酸根插层镁铝水滑石手性层柱材料，并用 FT-IR、XRD 和 DTA 对其结构进行了表征。

Rhyolitic volcanic rocks are generally characterized by rich alkali, silicon, aluminum,and poor calcium, magnesium. They have relatively high Rb,Th and rather low Ba,Sr,Ti,P,and exhibit obviouslv negative europium anomaly (δEu=0.16~0.44).The εNd values of the rhyolitic volcanic rocks range from -5.93 to -2022.Basalts and rhyolites in different cycles show clear geochemical variance.

流纹质岩石总体具富碱、富硅、富铝，贫钙、贫镁特征，其Rb、Th等元素的含量较高，而Ba、Sr、Ti、P等元素含量则明显偏低，并具显著的铕负异常（εEu=0.16'0.44），岩石的εNd值变化于-5.93~~-2.22.I、II旋回玄武岩和流纹岩在地球化学特征上均具明显变异。

Surface-treated aluminum hydroxide and magnesium hydroxide mixture, linear low density polyethylene and polyethylene grafted by maleic anhydride were melt-kneaded and extruded to produce a flame-retardant masterbatch, and then was extruded with polyamide 6(PA6) to yield PA6/SAMH/PE(50/30/20 by mass ratios)ternary composite.

采用表面处理过的氢氧化铝与氢氧化镁混合物（质量比2：1）、线型低密度聚乙烯、马来酸酐接枝聚乙烯共混挤出制成母料，然后与聚酰胺6(PA6)共混挤出即母料法制备了PA6/SAMH/PE三元复合材料。

In Eucalyptus forestland, soil organic carbon, total nitrogen, available potassium contents and soil PH decreased significantly; soil available phosphorus and exchangeable magnesium contents, net nitrogen mineralization rate and ammonification rate also decreased but showed no significant difference. In shrubland, soil exchangeable calcium content increased significantly, but the contents of other nutrients had no significant change.

结果表明：火烧3年后，桉林土壤有机碳、全氮、速效钾和pH含量明显降低，土壤有效磷、交换性镁、土壤净氮矿化速率和氨化速率降低，但不显著；火烧灌草坡除土壤交换性钙明显增加外，其他土壤养分均无显著变化。

The experimental results showed that Silurus lanzhouensis Chen contains many essential trace elements such as magnesium,zinc,iron.

结果显示，兰州鲶中含有丰富的铁、锌、镁三种人体必需微量元素。

The sample was digested by microwave,magnesium,zinc,iron in the Silurus lanzhouensis Chen were determined using flame atomic absorption spectrometry.

使用微波消解处理样品，火焰原子吸收光谱法测定了兰州鲶中的铁、锌、镁含量。

They formed in Sinian and Cambrian. The experimentalresults showed that:The removal of phoshporus and magnesium are independent ofmineralization periods of the ore in the reaction.

磷矿中大量镁的存在不仅降低了磷矿的品位，而且给磷矿的后续加工利用带来极为不利的影响，所以有必要在矿加工利用前除去其中的镁。

The degradation of three finishing systems,carbon steel/paint,magne sium alloy/paint,magnesium/chromate conversion coating/paint,was studied by salt spray test.

镁合金因其质轻、比强度高、减震性好等优异特性，越来越受到汽车制造、航空航天、通讯和计算机制造等众多领域的青睐[1]。

When the concentration of magnesium ion was reduced to 1.5μM,the incorporation of 3H-leucine could be increased by spermidine added at concentration below 500μM.

当麦胚体系中镁离子低到1.5mM时，精脒的浓度对兔胰mRNA的翻译也有重要的作用。

The materials of crankshaft mainly use QT900-2 and QT800-2 high-strength rare earth, magnesium, copper, molybdenum, spherulitic iron, and auxiliary with forging steel crankshaft.

公司产品以 QT900-2、 QT800-2高强度稀土镁铜钼球墨铸铁的曲轴为主，锻钢曲轴为辅。

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。