不对称的

The ligand of the chiral Schiff base and acetylacetone vanadium are subjected to complexation in situ, hydrogen peroxide is taken as an oxidant, aryl alkyl thioether asymmetric oxidation reaction is catalyzed in a toluene or dichloromethane solution under low temperature or room temperature, enantioselectivity of chiral sulphoxide is 72 percent to 95 percent ee, and yield is 42 percent to 83 percent.

将上述手性西佛碱配体与乙酰丙酮氧钒原位络合，采用双氧水为氧化剂，在甲苯或二氯甲烷溶液中低温至室温下催化芳基烷基硫醚不对称氧化反应，手性亚砜的对映选择性为72％-95％ee，产率为42％-83％。

But these experiences could be used for reference in the syntheses of flavan like compounds.

这些研究结果为黄烷类天然产物不对称全合成提供了一定的借鉴。

A readily available β-sulfonamide alcohol-titanium complex was found to be effective on promoting the asymmetric addition reaction of an alkynylzinc reagent to unactivated simple ketones under very mild conditions.

为此我们合成了一系列β-磺酰胺基醇，并将其作为配体与Ti4一起催化炔基锌对简单非活化酮的不对称加成反应。

One back pocket must be unstich after washing process,and then sewed with the fabric unblended,both pockets must be placed uniformly

一个后袋水洗后再用不一样的面料缝制，但是两个袋必须对称

Based on network node parameter model, a method to calculate faults in unsymmetrical transmission systems is presented.

基于节点参数模型系统地研究了不对称输电网故障分析计算的参数保留法。

I apply the unsymmetrical theory of information to money study and put up "incapable money".

把信息不对称理论应用于货币领域，提出了&无能货币理论&，用来解释股权弱势的成因。

The design and synthesis of a new unsymmetric 2, 6-bis pyridine iron catalyst and its use in ethylene polymerization.

新型不对称结构双亚胺吡啶铁系催化剂的设计、合成及其催化乙烯聚合反应研究。

Four unsymmetric telluracarbocyanine dyes are prepared by the general method.

按通常的方法合成了4个不对称碲碳菁染料。

The"Brooker diviation"of the unsymmetric telluracarbocyanines is also discussed.

本文还探讨了不对称碲碳菁染料的&Brooker偏差&，结果符合一般规律。

As anexample,the stable regions are computed for a rotor system with the only diskhaving unsymmetric rotational inertia.

并计算了具有不对称转动惯量单圆盘转子系统参激振动的稳定区间。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。