取得成功

The products were identified by IR,NMR,MS and elemental analysis. In our method,K.OH was used in place of NaOH to synthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate was purified on a silica gel column with chloroform/ethylacetate(4:l,v/v) as eluent and further purified by triturating with hexane/acetone(2:l,v/v).The luminescence produced by DMAE-NHS is a flash light with maximumemission at 0.4s and decay half-time of 0.9s. The luminescence intensity is 6.11x10 cps/mol,which is affected by the composition of trigger and surfactant.

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿/乙酸乙酯(4：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，第二次柱层析用己烷/丙酮(2：1，Ⅴ：Ⅴ)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷/丙酮(2：1，Ⅴ：Ⅴ)进行研磨，过滤，洗涤，除去溶于己烷/丙酮(2：1，Ⅴ：Ⅴ)的部分，得到所需要的产品。

Comrade Mao Zedong was a great leader, and it was under his leadership that the Chinese revolution triumphed.

毛泽东同志是伟大的领袖，中国革命是在他的领导下取得成功的。

Comrade Mao Zedong was a great leader , and it was under his leader ship that the Chinese revolution triumphed.

毛泽东同志是伟大的领袖，中国革命是在他的领导下取得成功的。

She never wavered in her determination to succeed.

她要取得成功的决心从未动摇过。

Less than 30% of conceptions result in a successful pregnancy.

只有不到30 ％的概念取得成功怀孕。

I wish you every success in your future endeavours.

我希望你在今后的每一次努力中取得成功

A kind of constraint model with different granules for cooperative product development is put out.

有效的协调方法和策略是协同产品开发取得成功的关键。

But I believe as long as we have ideals and stick to them, we all can achieve success.

但我相信，只要我们坚持自己的理想，我们都能取得成功。

Building platforms for success is critical in today's changing business environment.

为取得成功的基础平台是至关重要的当今不断变化的商业环境。

Resilience is one of the most important traits you can have to succeed in life.

要想在生活中取得成功，回复能力是很重要的一点。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。