杂多的

With the H3PW12O40/Al2O3 as catalyst, the conditions of preparing acrolein from glycerol were studied in a continuous fixed bed reactor.

同时利用常压连续流动的固定床反应器考察该催化剂对甘油制备丙烯醛的工艺条件，重点考察了催化剂的种类、杂多酸的负载量、反应温度等条件对反应的影响。

Also, the surface properties of the materials before and after POMs is loaded on titania pillared clay will be investigated in some dedail in the study.

实验研究发现杂多酸在钛柱粘土负载后的光催化氧化性能并没有提高，其中原因可能是沉积的难以控制，有可能导致催化剂表面的覆盖和孔道的堵塞。

The crystal structure analyses of 5-7 reveal that the position of the substitutive second metal in the Keggin anion plays an important role in the structures of the compounds.

其中，5、6和7的单晶结构分析表明Keggin型杂多酸阴离子上单取代的位置对化合物的结构有着较大的影响。

Knoevenagel condensation reaction of aromatic aldehydes with active methylene compounds like ethyl cyanoacetate proceeds smoothly in water in the presence of 8mol% of diammonium hydrogen phosphate and 2mol% TEBA.

醛与活泼亚甲基化合物的 Knoevenagel 反应是有机合成中广泛应用的形成碳碳键的重要方法，该反应一般是弱碱性催化剂存在下完成的，如各类胺、脲[1]等，Lerwis酸[2]、杂多酸[3]、氨基酸[4]等也可用于催化该反应。

In the Infrared spectrum of complexes, there are strong absorptions in ~1 660 cm-1 which can be ascribed to the antisymmetric vibration of the O -C -O unit in heterometallic multinuclear complexes. The different dates of antisymmetric stretching vibration of ox present two modes.

在红外光谱中，杂多核配合物在～800 c~(-1)有强的O—C—O反对称伸缩振动吸收，根据草酸根表现的非对称伸缩振动、对称伸缩振动的数值，判断出它们有两种不同的配位方式。

The results showed that the suitable condition for the reaction are as follows: benzaldehyde/1, 2-propylene molar ratio is 1:1.4, the mount of potassium dodecatungstocobaltate trihydrate (K5CoW12O403H2O) is 0.5g, the volume of cyclohexane is 9 mL, and reaction time is 70 min.

实验结果表明，杂多化合物K5CoW12O403H2O是合成环己酮l， 2-丙二醇缩酮的良好催化剂，在酮醇物质的量比为l：1.4、催化剂质量为0.5g、带水剂环己烷体积为9mL、反应时间为70min的最佳条件下，环己酮l， 2-丙二醇缩酮的收率最高可达94.2%。

The capsaicin in the sample was alkalized with NaOH solution and mixed with phosphotungstic acid and phospho-molybdic acid , the blue heteropoly acid salt has characteristic absorption at 660 nm.

对以辣椒碱为单剂和复配剂制成生物农药中辣椒碱总量的测定条件研究结果表明，含有辣椒碱的生物农药试料，辣椒碱在碱性溶液中与磷钨酸-磷钼酸作用，生成蓝色的磷钨酸–磷钼酸杂多酸盐，在660nm有最大吸收，其吸光度与溶液中辣椒碱的含量成正比。

Catalytic synthesis of ethyl chloroacetate with phospho-molybdic acid ;2. The capsaicin in the sample was alkalized with NaOH solution and mixed with phosphotungstic acid and phospho-molybdic acid , the blue heteropoly acid salt has characteristic absorption at 660 nm.

对以辣椒碱为单剂和复配剂制成生物农药中辣椒碱总量的测定条件研究结果表明，含有辣椒碱的生物农药试料，辣椒碱在碱性溶液中与磷钨酸-磷钼酸作用，生成蓝色的磷钨酸–磷钼酸杂多酸盐，在660nm有最大吸收，其吸光度与溶液中辣椒碱的含量成正比。

The result showed that the pre pared doped polypyridine was irregular granule with 0.1~0.6 μm granularity. The electrochemical performance of H3PMo12O40 and polypyridine could be manifested. The product possessed definite thermostat-bility. Polypyridine was decompounded at temperature above 511℃.

结果表明，制备的掺杂态聚吡啶形貌为0.1~0.6μm的不规则颗粒，能表现出杂多酸和掺杂态聚吡啶的电化学行为，并具有一定的热稳定性，聚吡啶在511℃以上分解失重。

The results showed that the mixed-addenda heteropolyacids H6PM o9V3O40,H10PMo5V7O40and H11PMo4V8O40 c an improve the conversion of 2-octanol,selectivity for hexanoic acid and the r ate of production.When the amounts of heteropoly acid are 14%,10%and 14% of the weight of 2-octanol,co...

结果表明：H6PMo9V3O40、H10PMo5V7O40、H11PMo4V8O40等多元杂多酸均可提高仲辛醇的转化率、己酸产率和己酸选择性，并确定了这3种催化剂的最佳用量：当它们分别为仲辛醇质量的1 4%、1 0%、1 4%时，仲辛醇转化率可达98 3%、97 6%、100%；己酸的选择性可达85 7%、85 8%、78 8%；其性能明显优于钒催化剂。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷