金属化

In this paper several methods including acylamide dehydration, metal cyanide replacement, etherification and isoxazole method for synthesis of 3,3-diethoxyethylcyanide were reviewed.

综述了3，3-二乙氧基丙腈的合成方法，包括酰胺脱水、金属氰化物取代、醚化和异恶唑法，用于工业化生产较为满意的合成路线是以1，1，3，3-四乙氧基丙烷为原料的异恶唑法。

The hybrid mesoporous materials, PW11/SBA-15, were synthesized using tetraethoxysilane and lacunary polyoxometalate Na7PW11O39 (PW11) by a co-condensation approach in the presence of triblock copolymer EO20PO70EO20 (P123) as a template.

采用三嵌段共聚物EO20PO20(P123)为模板剂，正硅酸乙酯和缺位Keggin型多金属氧酸盐Na7PW11O39(PW11)为无机前驱体，由共缩合法一步合成了PW11/SBA-15介孔杂化材料。

Ganzi-Muli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and ore-controlling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four A-type prospective areas and three B-type ones among them have been lineated.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

GanziMuli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and orecontrolling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four Atype prospective areas and three Btype ones among them have been lineated.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

Ganzi-Muli is a main metallogenic belt in western China.By studying it's metallogenic geological backgrounds, characteristics of structural activities, main types of the gold deposits and ore-controlling factors, and in virtue of the statistical prediction of DPIS(Deposit Positioning Inspecting System) and comprehensive information statistics, seven oreprospecting areas, identically, four A-type prospective areas and three B-type ones among them have been lineated. Furthermore, metallogenic characteristics and prospecting direction of every areas above have been discussed.

甘孜-木里成矿带是我国西部金的主要成矿带之一，通过对甘孜-木里成矿带成矿背景、构造活动特征、主要金矿类型和控矿因素的分析，选取地层、岩浆岩、构造、化探异常、金属矿产和自然重砂矿物作为找矿预测标志，以DPIS的统计预测功能开展综合信息量统计和成矿预测，圈出找矿远景区7个，其中A类远景区4个，B类远景区3个，并进一步指出了每个远景区的成矿特征和找矿方向。

After As in WO3 is dissolved with NaOH solution, WO3 is coordinated by citric acid. In HCl medium, As is reduced to lwo valency As by KI and then low valency Asis reduced to gas AsH3 by SnO2 and metal Zn. After that, DDTC-Ag solution is applled as absorbent for colorimetric determinhtion.

用氢氧化钠溶液溶出三氧化钨中的砷之后以柠檬酸配位三氧化钨，在盐酸介质中用碘化钾将砷还原成低价砷，再用二氯化锡和金属锌将低价砷还原成砷化氢气体，以DDTC-Ag溶液吸收进行比色测定。

Optic and electron microscopic examinations were conducted to observe the pathological changes of articular cartilage and synovia and Mankin's scale were performed.

观察3组滑膜组织的光镜、电镜改变及软骨的光镜、基质金属蛋白酶-1(MMP-1)免疫组化改变，比较软骨Mankin′s评分及关节液中IL-1的浓度。

It has been found that the cation exchange on diffusivity may play the role in different ways for different zeolites. When the diameter of the diffusant molecule is much smaller than the pore or cage size of the zeolite, the influence of exchanged cations is mainly by way of altering the electric field intensity (or the density of electric charge), the large the Z/r of the exchanged cations, the smaller the diffusivity; while the diameter of the molecule is apporsi- mately equal to the pore or channel size of the zeolite, the exchanged cations may affect the diffusivity by means of blocking up or narrowing the channels of the zeolite.

金属阳离子交换对扩散的影响表现为：当扩散分子的直径比分子筛孔道直径小得多时，交换阳离子以改变分子筛内部电场强度或电荷密度的方式影响扩散速度，阳离子的Z/r越大，扩散系数越小；当扩散分子直径与分子筛孔道直径相近时，交换阳离子则因堵塞或窄化孔道而改变分子的扩散速度。

A method for removing sulfur compounds from gasoline was investigated involving the conversion of sodium metaborate to sodium borohydride by electrochemistry deoxidation and the incorporation of a kind of metal compounds.

研究了利用电化学方法将偏硼酸钠还原成硼氢化钠，并加入一种金属化合物，用于汽油脱硫的方法。

Thenew methods can eliminate the interfering information of vegetation and other ob-jects,and the hydrothermal alteration information can be extracted effectively.Itsimportance is to explore Au,Ag and multiple metalliferous ore.

结果表明，所提出的方法能消除植被和其他地物的干扰，有效地提取出与金、银等多金属有关的矿化蚀变信息，效果良好。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。