查询词典 oxide

Several mixed control samples of manganic manganous oxide, manganese dioxide and manganese sulfate with various sulfur content were prepared by adding sulfuric acid with known concentration into high pure manganic manganous oxide. Then they were dried and mixed, and the content of sulfur was determined by high frequency infrared ray carbon sulfur analyzer.

向高纯四氧化三锰中加入已知浓度的硫酸，制备不同含硫量的四氧化三锰、二氧化锰、硫酸锰的混合物控制样，将制备好的控制样干燥、混匀后，用高频红外碳硫分析仪分析控制样中的硫含量。

In the series iron oxide pigment, micaceous iron oxide, micaceous pearlscent pigment and transparent pigment have great value and pospective mark...

氧化铁系列颜料中的云母氧化铁、云母氧化铁珠光颜料和纳米氧化铁具有很高的附加值，市场应用前景广阔。

H52-62 micaceous ferric oxide epoxy anti-corrosive coating is consisting of epoxy resin, micaceous ferric oxide, filling agents, aids and other materials. It is two components coating.

H52-62环氧云铁防腐漆是由环氧树脂、云母氧化铁颜料、填料、助剂等材料组成的双组份涂料。

Molybdena oxide and tungsten oxide 10-50 wt.%, and carrier. The catalyst is prepared by introducing nickel, molybdena and tungsten into the carrier containing molecular sieve.

该催化剂由包括向一种含分子筛的载体引入钼、镍和钨的方法制备，其中，各组分的用量使催化剂焙烧后的组成为：氧化镍1-10重量％，氧化钼和氧化钨之和大于10至50重量％，余量为载体。

Influences of reaction temperature, catalyst concentration, molar ratio of methanol to propylene oxide and reaction time on conversion of propylene oxide, yield and selectivity of propylene glycol monomethyl ether were studied.

在反应温度为120～130℃、催化剂用量为0.20%～0.30%、甲醇与环氧丙烷摩尔比为3/1～5/1的反应条件下，环氧丙烷的转化率在98％以上，丙二醇甲醚的选择性达95％，收率达93％，产品中伯醚的选择性为92％～93％。

Influences of reaction temperature, catalyst concentration, molar ratio of methanol to propylene oxide and reaction time on conversion of propylene oxide, yield and selectivity of propylene glycol monomethyl ether were studied.

研究了甲醇与环氧丙烷在固体碱催化剂MAF存在下非均相合成丙二醇甲醚的过程。

From 500℃ to 550℃, the oxide scale presents a relatively compact morphology, the oxidational wear is the principal wear mechanism and the wear rate is very slow at 500℃ owing to the anti-friction effect of the oxide scale.

本文研究了5CrNiMo在400℃、500℃、550℃及600℃温度下的滑动磨损行为，利用扫描电镜，波谱仪及X射线衍射仪对磨损面形貌及成分进行了分析，结果表明：5CrNiMo钢磨损机制随温度的变化而变化，400℃时表现为疲劳剥落和磨粒磨损，500℃至550℃时表现为氧化磨损，600℃时主要是粘着磨损。

When this hydroxamate-xanthate collectorsystem used to float another highly siliceous pelitic copper oxide ore,a copperconcentrate of 25% Cu can be obtained with recovery of 85% for free copper oxide.

自由氧化铜回收率≥85%，选择合适的调整剂及相应的流程结构更有利于羟肟酸-黄药&混合剂&在Cu-Fe共生难选养化矿浮选中发挥最佳效用，不仅可以得到品位达36%的优质铜精矿。

The dust around PG 2112+059 contains large quantities of rock-forming minerals, including crystalline forms of silica, a form of aluminium oxide called corundum (better known on Earth as the principal ingredient of rubies and sapphires) and a form of magnesium oxide called periclase.

PG 2112+059类星体周围的尘埃含有大量形成岩石的矿物，包括硅晶石，被称作刚玉的铝氧化物（更为通俗易懂的说法是红宝石和蓝宝石的主要成分），以及镁氧化物——方镁石。

Test results show that the shear strength parameters of the fly ash with high calcium oxide content can make a notable change due to pozzolanic action and frost and thaw cycles, but for the fly ash with low calcium oxide content this phenomenon is not very obvious,and the influence of the frost and thaw cycles can be neglected.

试验结果表明，高氧化钙含量的粉煤灰的强度指标受上述两种作用的影响显著；低氧化钙含量的粉煤灰的强度指标在凝硬作用下也有所提高，但基本不受冻融作用的影响；干贮粉煤灰的渗透系数受凝硬和冻融作用的影响较小。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。