合成地

Preparation method of perfluorooctane based on n-octane and anhydrous hydrogen fluoride as starting materials via electrochemical fluorination is described in detail finally.

介绍了全氟辛烷的性质和用途，列举了合成全氟辛烷的各种工艺路线，最后较为详细地论述了以正辛烷和无水氟化氢为原料，通过电化学氟化法制备全氟辛烷的工艺过程。

Because stable contents design of courses is separated from variable instructional process design, it makes individual instruction realized easier. In order to improve the quality of instructional software and make the widely use of modem instructional theory, TMCS gives many supports for teaching models'construction. It ranges from interface design, basic instructional activities'construction, teaching model synthesizes, and instructional system programming automation. The TMCS makes the instructional theories interfuse with software development processes.

为了提高教学软件的教学效果，促进现代教学理论和教学模式的广泛使用，本文提出的教学模式构造体系MCS对教学模式提供了从界面设计、基本教学活动构造、教学模式合成、教学系统自动生成等多个层次计算机实现的支持，有效地促进了教学理论和软件设计过程的有机融合。

The preliminary plan and actualized blue prints were presented,which was to construct an interact teaching,interpenetrative and flexible polymer science experiment course combined polymer chemistry,polymer physics and polymer process.Students learn from molecular design to synthesize polymer compounds and character properties of the materials,them process them to an utilized produce in this course.

设想将高分子化学、高分子物理和高分子成型加工三门实验课程有机地串联起来，组建成一门包括从高分子材料设计(用计算机软件进行分子设计、性能模拟)、聚合物合成、性能测试到加工成型，能环环相扣、互动式的、柔性化的高分子科学实验课程；提出了初步的实践方案。

When the target maneuvers, and if the target is taken as reference, the radar will form an inverse synthetic aperture a...

当目标作机动飞行时，以目标作固定基准，雷达等效地在空间形成流形复杂的逆合成孔径，对这种情况下成像的问题进行了系统的研究

When target maneuvers, and if we take target as reference, radar will form a complicated inverse synthetic aperture manifold equivalently in space, this chapter studies the imaging problem systematically in this situation.

当目标作机动飞行时，以目标作固定基准，雷达等效地在空间形成流形复杂的逆合成孔径，本第二章是对这种情况下成像原理进行了系统的研究。

And in the neighborhood L,the distribution of pixel is consectary at the geometry but discrete at the color space.

经验证，该算法可在纹理合成、图像修补及纹理检索中应用，并可很好地达到实时的应用要求。

Three N-pivot lariat ethers with picrylamino group as side arms have been prepared, and the selective coloration of above chromogenic ethers for alkalic metal salts and amines have been studied conveniently by UV-Vis spectra.

设计合成了三个具有分子隙缝的、以苦胺基为侧臂的N-支套索冠醚，利用其生色基和UV-Vis吸收光谱，简便地研究了冠环大小、键连基团对碱金属盐和有机胺选择变色作用的影响。

In addition,3-d subspace in quotient image method doesn't suffice to represent all images of an object under varying illuminations.Therefore,an improved method based on image on 9-d linear subspace constructed using 9 images of object under the configuration is presented to overcome these deficiencies.And 9 images of another object under the configuration are generated.

此外，商图像方法中简单的三维点光源模型无法很好地近似任意光照情况，因此，提出一种基于九维线性子空间的改进的商图像方法，并利用改进后的商图像方法合成对象在统一配置光源方向下的9幅图像，克服了Lee所提方法的不足。

DPU at a concentration of as low as 10^(-7)mol/L retained the chlorophyll of Spirodela half-fronds under long-day conditions. From 10^(-5)~2×10^(-4)mol/L it prompted the synthesis of chlorophlly and the serine: glyoxylate aminotransferase activity, increased dry weight, and retarded the senescence of half-fronds.

在长日照条件下，10^(-7)mol/L的二苯脲对紫萍半叶状体就有保绿的作用，10^(-5)~2×10^(-4)mol/L的二苯脲还可以明显地促进叶绿素的合成和干重的增加，提高丝氨酸：乙醛酸转氨酶的活性，延缓半叶状体的衰老。

Polytetrafluoroethylene bonded carbon-based oxygen electrode are widely used in many important electrochemical technologies, such as fuel cells, matal/air batteries, organic electrosynthetic processes and electrochemical devices for decontamination of wastewaters.

聚四氟乙烯粘结的碳基氧电极广泛地应用在燃料电池、金属/空气电池、有机电合成及电化学废。。。

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