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Three chiral phosphorus ligands were prepared using anisole as the startingat material.Their applications in the asymmetric hydroformylation and asymmetric conjug ed addition of diethylzinc to enones were investigated.

以苯甲醚为原料，合成了三种新的手性含磷配体，考察了三种配体在不对称氢甲酰化反应和ZnEt2对环己烯酮的不对称共轭加成反应中的应用。

In the acylation reaction between anisole with acetyl chloride, The catalyst of ZnCl〓/HY-98 prepared by MWI had the best catalytic activity and the selectivity of p-methoxy acetopheone. The catalytic active centers were ZnCl〓 dispersed in zeolite and the Bronsted acid sites in HY-98 zeolite itself.

在苯甲醚与乙酰氯的酰化反应中，微波固相法制备的ZnCl〓／Y催化剂有相对较好的催化活性和选择性，起催化作用的主要是分散在分子筛表面的ZnCl〓和分子筛本身的B酸。

When choosing a type of annuity, you are also deciding on a certain level of risk which you are prepared to take.

当选择了某一类型的年金，你们也决定了一定程度的风险，你准备采取的措施。

A series of anorthite/glass composites were prepared using electronic ceramics process.

采用电子陶瓷工艺制备了一系列钙长石/玻璃复合材料，并对复合材料进行X射线分析、扫描电镜观察和性能测试。

Under contented the used intensity,the anorthite ceramic substrate which prepared with pyrophyllite at low-sintering temperature has small dielectric constant,good dielectric property which compared with common aluminum substrate,the anorthite ceramic substrate has light bulk density,which is advantage to reduc.

研究了用叶蜡石、碳酸钙与适量的氧化铝，在加入添加剂的条件下，用原位反应烧结法制备出低温烧结( 12 0 0℃)的新型钙长石质陶瓷基片材料。

Not very many these days are prepared to go along with Anselm.

不多这几天准备前往随着

In the anthracite coal strike of 1902, he was prepared to go the full limit in asserting the public interest

在1902年无烟煤矿罢工中，他准备竭尽全力维护公共利益。

All the applicants were prepared to admit anticompetitive behaviour in return for reduced penalties.

所有申请企业都准备承认其反竞争行为，以换取宽恕处罚。

Apply over properly prepared steel and/or on aged antifouling in good condition.

可用于正确处理的钢材，或保持良好的防污漆旧涂层上。

The antifriction property of composite coatings prepared by three different stirring processes has been researched.

在制备过程中采用三种不同的搅拌工艺，并对相应镀层的减摩性能进行比较。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐