化合的

The catalytic activity was characterized by the reaction of hydroxylation of phenol.

并用苯酚羟基化合成苯二酚作为探针反应，考察了TS-1膜的催化活性。

The spheroidal precipitates exist at the interrace of WC/γ phases ...

初步推测，稀土在此处以原子态存在，但不排除以化合状态存在的可能。

In the solar energy transfer and storage system,the isomerization of norbornadiene and quadricyclane is an important reaction.

在太阳能转换与储存体系中，降冰片二烯光异构化合成四环烷是非常重要的一个反应。

Under the catalyst, the polymerization retarder, the including water medicinal preparation existence condition, the methylacrylic acid and the polyethylene glycol single methyl ether (400) direct esterification synthesis methylacrylic acid polyethylene glycol single methyl ether (400) ester, and the influence factors of the catalyst, polymerization retarder, including water medicinal preparation has mellowly carried on the comparison.

摘要在催化剂、阻聚剂、带水剂存在的条件下，由甲基丙烯酸与聚乙二醇单甲醚(400)直接酯化合成甲基丙烯酸聚乙二醇单甲醚(400)酯，并对酸醇比、催化剂、阻聚剂、带水剂等影响因素进行了比较。

A new technology for synthesis of mesitylene from pseudocumene by liquid non-hydroisomerization on M-2 catalyst was studied.

在M-2型复合丝光沸石催化剂上，研究了偏三甲苯液相非临氢异构化合成均三甲苯的工艺。

Many risk,hazard and environmental factors are existing in the acylation process of N-formylmorpholine from morpholine.

吗啉酰化合成甲酰吗啉过程存在诸多安全与环保的危险、有害因素。

The conversion of acetic acid and the selectivity of propylene reached 85.43% and 98.52%, respectively.

本文还对乙酸与丙烯直接酯化合成乙酸异丙酯的动力学进行了研究。

The Calcium particles combine with impurities in the steel to produce surface slag in the blast furnace.

钙颗粒与钢水中的杂质化合后在炼钢炉内形成一层表面炉渣。

Some metals are found in their native status, that is, uncombined with other elements.

有些金属是以天然状态存在的，即不与其他元素化合。

Some metals, such as gold, are found in their native state---that is, uncombined with other dements.

有些金属，如黄金，是以天然状态存在的，即不与其他元素化合。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。