不对称的

A fundamental objective of governance research in accounting is to provide evidence on the extent to which information provided by financial accounting systems mitigate agency problems and information asymmetry due to the separation of managers and outside investors .

会计治理研究中的一个基本目标就是为财务会计提供的信息在多大程度上减缓由所有权和经营权两权分离所带来的代理问题以及减少信息不对称问题提供证据。

Ee value was achieved when acetophenone was chose as the substrate under the optimal condition.

研究了该催化剂催化的以苯乙酮为底物的不对称硅腈化反应，在最佳反应条件下得到了69%的ee值。

Compared with conventional half-bridge topology, a branch comprising an auxiliary switch and a capacity is added in secondary circuit.

与传统的不对称半桥变换器相比，该变换器在变压器的副边电路中增加了一条由辅助开关管与谐振电容串联组成的辅助支路。

Second, with Principal-Agent theory and Trade Fee Theory, the dissertation sets up an analyzing frame of the affectivity of venture capital institution, and analyzes the progressing process and inner reasons of all kinds of venture capital organization.

创业投资机构作为新兴的金融中介，通过提供监督、服务，能相对有效的解决信息不对称产生的"逆向选择"和"道德风险"。

In order to examine the catalytic activity of the new catalysts, we have carried out the direct asymmetric Aldol reaction of tetrahydro-4H-thiopyran-4-one with aldehydes.

催化剂的基本结构单元如下：为了检验新型有机催化剂的催化活性，我们研究了硫代四氢吡喃酮和各种醛的直接不对称Aldol反应。

The catalytic effects of 1a and 1b on the intermolecular direct asymmetric aldol reaction were evaluated in organic solvents and in water respectively. The activity of 1a was higher than that of 1b.

研究了1a和1b分别在有机相和水中催化分子间直接不对称Aldol反应的性能，发现具有较长烷基链的1a比具有较短链的1b催化活性高。

These ligands were found to be very effective in construction of quaternary carbon centers by using asymmetric allylic alkylation.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

The ligands were found to be effective in palladium-catalyzed asymmetric allylic alkylation to construct chiral quaternary carbon center.

这类配体在前手性亲核试剂的不对称烯丙基化构筑手性季碳中心的反应中，显示了较好的反应活性及对映选择性。

Grignard Reagent ofmagnesium reacts with halide hydrocarbon, which and Se powder is prepared toSe-Mg Grignard Reagent.

在3倍镁量反应物和15％CuI，在反应温度在45℃反应时间为10小时的条件，并不能有效的合成不对称有机硒醚。

However, using tributylphosphine as a Lewis base and -1, 1'-bi-2-naphthol as a cocatalyst, the Baylis-Hillman reaction of arylaldehydes with cyclopent-1-en-one proceeded smoothly.

在本论文主要对磺酰亚胺和各种活化烯的aza-Baylis-Hillman反应以及它们的不对称aza-Baylis-Hillman反应进行了研究。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。