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The second route firstly studied the tautomerization of the key intermediate from spirostane to cholestane 3-O-substituted kryptogenin,then formed a direct access used Zn/KI/HOAc reduction,which supplied a better synthetic method of MPD and other furostanol saponins.

第二条路线则首先研究了由螺甾到胆甾结构的关键中间体3-O-substituted kryptogenin的异构化现象，建立起以Zn/KI/HOAc还原反应直接合成该中间体的过程，这提供了一个更好的合成甲基原薯蓣皂苷及其他呋甾皂苷的方法。

Today,small and medium enterprises have taken quite important role in the economic development of our country, and they cannot be substituted in many ways, such as boosting of economic increase,driving technological advancement,decrease unemployment,and so on.

当今时代，中小企业在我国国民经济发展中具有十分重要的地位，在促进经济增长、带动技术进步、减少失业等方面发挥着不可替代的积极作用。同时，技术创新已经成为企业发展的原动力。

By selecting perceptible YUV colour space, the tensor product of multi-resolution-analysis was substituted for the tensor product of the wavelet function to build up the two dimensional Mallat algorithm to implement the fast wavelet transform, according to wavelet analytical theory.

选择了感知性强的YUV色彩空间，根据小波理论用多分辨分析的张量积代替小波函数的张量积，建立了二维的Mallat算法以实现快速小波变换。

A series of novel laterally O-difluoro-substituted terphenyl chiral liquid crystals have been synthesized through a simple route based on palladium-catalyzed cross-coupling reaction.

利用钯催化交叉偶合反应合成了一个系列的侧向邻二氟取代三联苯光活性液晶化合物。

Tetrahedrally coordinated iron in framework-substituted microporous AlPO-5 catalysts are shown to be active and selective for the hydroxylation of benzene to phenol, using nitrous oxide as the oxidant.

四面体配铁架构取代硅微孔-5催化剂载有选择性的活跃和苯羟化苯酚、使用笑气作为氧化剂。

To terminate the powers of the persons theretofore authorized, and to empower the persons substituted

公司，此通知一旦收悉，将终止先前授权人的权及同时赋予接任人。

Above provided, which notification, when received, shall be adequate both to terminate the powers of the persons theretofore authorized, and to empower the persons substituted

定的方式向FXCM 加以证明，此类通知一旦收悉，将同时终止先前受权人的权力和赋予接任人权力。

In writing in the manner herein above provided, which notification, when received, shall be adequate both to terminate the powers of the persons theretofore authorized, and to empower the persons substituted

该书面通知一经接收即作为对前一任被授权人权力的终止，及所继任人的授权。

According to the principle of thermopile ,and the three-dimensional loop wire laying is substituted by new-style plane wire laying.

研究成果是基于热电堆的原理用新型的平面布线取代三维的线圈布线。

Its molecular structure includes a substituted pyridine ring and a thiazole ring.

其分子结构包括一个置换的啶环和一个唑环。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。