合成地

We prepared the pyrethric acid II through four reactions: esterification, oxidation, decomposition, diesterification. And the original synthesis route of the pyrethric acidII was improved: the yield of oxidation of allyl rise through increasing the activity of Selenium dioxide; in the document, tert-butyl-trans -2, 2-dimethy1-3-(2"-methoxycarbony1-1"-propenyl)cyclopropanecarboxy late was synthesized from tert-butyl-trans-2,2-dimethyl-3-(2 -formyl-r -propenyl) cyclopropanecarboxylate with two steps, with low yield.

我们经过酯化，氧化，成双酯，热分解四步反应，成功地得到了第二菊酸，并改进了原第二菊酸的合成路线：通过改变二氧化硒的活性提高了烯丙甲基的氧化产率；将原路线中醛氧化成羧酸、羧酸酯化的两步反应改为醛和甲醇、二氧化锰等作用一步直接酯化的方法，减少了反应步骤，提高了总收率。

I made an extensive use of some real footage fire pictures collected on a black background sometime back, when I bought a cd called Pyromania full of these pictures, they're pretty easy to composite in hard light mode and only the flames remains.

Tim新建了一个层，在各个地方加了一些火焰，我广泛地使用一些真实的实拍素材，比如在黑色背景上的火焰的照片，之前我买过一张素材CD，叫做Pyromania，里面满是这些素材图片，他们非常容易被合成到图像里，使用hard light层叠模式，黑色的背景就会被去除，只留下火焰，同时我还能得到一些期望的火焰产生的灯光效果。

Numerous quinoxaline derivatives have been prepared to get biologically active compounds, and the research continues to synthesize new compounds having unusual skeletons.

许多喹喔啉衍生物被认定具有生物活性，故不断地被研究以合成新的骨架。

A new method of web service composition based on MP algorithm is proposed for improving the composition of web services that is located in different UDDIs, and the performance of the semantic reasoner in the process of web service composition.

该方法可以方便地在UDDI(universal description， discovery and integration)之间的web服务之上进行合成，并有效结合了语义推理机，提高了算法的效率。

As a kind of imaging radars, synthetic aperture radar improves its resolution by means of moving and emitting pulse repetitiously. The issues about target detection of SAR are often a 憄ost-process?of the SAR imaging.

合成孔径雷达(synthetic aperture radar，简称SAR)通过对地面目标的多次照射来提高方位向上的目标分辨能力，由此使现有的SAR目标检测算法通常是一个基于SAR图像的"后处理"过程。

The target model is structured using vector resultant of multi-scatter center. Second, based on the character of land clutter, different kinds of land clutter are simulated. Last, the hardware of the system is designed.

首先分析了目标的反射特性，利用多散射点合成的方法建立目标回波模型；然后根据地杂波的特性，模拟产生了不同分布类型的地杂波；最后设计了脉冲体制目标模拟器的硬件实现方案。

The second eigenvalue of the sample covariance matrix of dual-channel SAR data can effectively indicate the ground moving targets.

利用双通道合成孔径雷达(synthetic aperture radar， SAR)数据的协方差矩阵的第二特征值，可以有效地检测地面运动目标。

In the meantime, Sandoz painstaking research new ways of fried chicken, and finally succeeded in inventing a 11 kinds of spices and cooking techniques unique to the synthesis recipe, its unique taste deeply welcomed by customers, restaurants, business is becoming increasingly prosperous, secret follow the so far.

在此期间，山德士潜心研究炸鸡的新方法，终于成功地发明了有十一种香料和特有烹调技术合成的秘方，其独特的口味深受顾客的欢迎，餐厅生意日趋兴隆，秘方沿袭至今。

In 1952, Dayu Tin Plant produced composed scheelite successfully by using sintering method.

1952年，大余炼锡厂采用烧结法分解含WO320-30%的炼锡炉渣，成功地生产出合成白钨，由此揭开了赣州钨冶炼的序幕。

Synthesis,application of long-chain-alkyl silicone oil and secondary product s were introduced in the paper.

系统地介绍了长链烷基硅油及二次加工品的合成及用途，并对其应用前景进行了展望。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失