合成地

According to the test result,the process of synthesis of cryolite from sodium fluorosilicate by ammonia method and the optimum process parameters are introduced in detail.

根据试验研究结果，详细介绍了氟硅酸钠氨法脱硅、氨化液化学合成制取冰晶石的工艺流程和优惠工艺技术参数，以及在制取过程中应着重注意控制的工艺条件，有效地解决了在以往生产中产品除硅、硫杂质难及产品灼烧失量大等问题。

A novel monomer the 1-methyl-4,5-bis(4-chlorobenzoy) cyclometer containing cyclohexene were prepared,so a group of novel polys containing the cyclohexene and phthalazinone moieties was prepared by the nucleophilic displacement reaction of 1-methyl-4,5-bis(4-chlorobenzoyl) cyclohexene and 4,4′-dichlorodiphenyl sulfone and 4-(3,5-dimethyl-4-hydroxyphenyl)-2,3-phthalazin-1-one.

用新型聚合单体1-甲基-4，5-二(4-氯代苯甲酰基)环己烯与4-(4-羟基苯基)-2，3-二氮杂萘-1-酮、4，4′-二氯二苯砜单体经亲核共缩聚反应，成功地合成了含环己烯结构的杂环联苯型聚醚系列聚合物。

A novel monomer the 1-methyl-4,5-bis (4-chlorobenzoy) cyclometer containing cyclohexene were prepared,so a group of novel polys containing the cyclohexene and phthalazinone moieties was prepared by the nucleophilic displacement reaction of 1-methy l-4,5-bis(4-chlorobenzoyl) cyclohexene and 4,4'-dichlorodiphenyl sulfone and 4-(3,5-dimethyl-4-hydroxyphenyl)-2,3-phthalazin-1-one.

用新型聚合单体 1-甲基-4，5-二(4-氯代苯甲酰基)环己烯与 4-(4-羟基苯基)-2 ，3-二氮杂萘-1-酮、4，4′-二氯二苯砜单体经亲核共缩聚反应，成功地合成了含环己烯结构的杂环联苯型聚醚系列聚合物。

A detection method of double-threshold constant false alarm movement object on double-base synthetic aperture radar includes finalizing distance compression of various pulse-sampling, dividing orientation time to be multiple CPI, carrying out FFT in each CPI to enter orientation frequency domain, comparing data amplitude of frequency channel at external of clutter region with the first threshold and outputting point trace, making coagulation on point trace, making Hough transform in point trace domain and making decision of the second threshold.

本发明涉及一种用于双基地合成孔径雷达的双门限恒虚警运动目标检测方法，其特征在于：1对每个脉冲采样完成距离压缩；2把方位时间分割成多个相干处理间隔；3在每个CPI内做快速傅立叶变换进入方位频域；4把杂波区外的频率通道的数据幅度和第一门限比较做判决并输出点迹；5点迹凝聚；6在点迹域做Hough变换并做第二门限判决。

The results suggested that nimodipine could influence the calcification of dentine, but had no obvious influence on the synthesis and secretion of dentine matrix.

实验结果表明，尼莫地平能够影响牙本质的矿化，但对牙本质基质的合成和分泌无明显影响。

A vivid example of this: in the two deuterium nuclei polymerization into a helium-4 nucleus, it seems quality is not conservation, is the quality of helium-4 nucleus does not mean that two of the deuteron and quality.

这个例子生动地说明：在2个氘原子核聚合成1个氦4原子核时，似乎质量并不守恒，也就是氦4原子核的质量并不等于2个氘核质量之和。

In this paper, the synthesis of alkyl-guanidine sulfate s and its flotation properties to diaspore, kaolinite, pyrophyllite and illite have been started.

本文系统地研究了烷基胍硫酸盐系列捕收剂的合成方法及其对一水硬铝石、高岭石、叶蜡石和伊利石的浮选性能，通过矿物的接触角测量、ζ-电位测定和红外光谱分析等手段，探讨了烷基胍类捕收剂与铝硅矿物的作用机理。

At last, complete the synthesis of digitoxin in liner 17 steps in 16.2% yield.

最终通过线性总计17步，总收率16.2%完成了地高辛的全合成。2。

The parameter selection in many proposed methods in this area is evaluated firstly by defining a discriminability function computing on some synthesized defect images,and thereby an efficient parameter selection method is proposed in real time constraint.

通过定义一个分辨力函数和一些合成的疵点图像，对已有的Gabor滤波器组的参数选择方式做出评价，提出了在实时应用场合有效地确定Gabor滤波器组参数的方法。

We first built the method of DNR determination in spiked human urine by CZE-AD.

本文运用毛细管区带电泳-安培检测法首次成功地建立了合成尿样中抗癌药柔红霉素的分离分析方法。

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