三比二

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

Yes, we can selectively in patients with less extensive resection than pneumonectomy," they added, warning, however, that a continued decrease in complications from surgery was still essential and that "further data from randomised trials are urgently needed to define the best selection criteria for bimodal or trimodal treatment.

可以。我们可采用比全肺切除术切除范围更小的手术方式。&不过他们还提醒，继续努力减少手术并发症依然很重要，并且&急需收集更多随机研究数据以确定二联或三联法治疗的选择最佳标准。

Erhe brandishes his fist to Santos:"With this…Gee, ain't no point talking to you. Since when have you got the gut to fight people?"

许二和给许三多比画他的拳头，&这么着……嗨，跟你说个屁，什么时候你敢跟人动手？&

It would take up a larger Volume than this whole Work is intended to be, to set down all the Contrivances I hatch'd, or rather brooded upon in my Thought, for the destroying these Creatures, or at least frighting them, so as to prevent their coming hither any more; but all was abortive, nothing could be possible to take effect, unless I was to be there to do it my self; and what could one Man do among them, when perhaps there might be twenty or thirty of them together, with their Darts, or their Bows and Arrows, with which they could shoot as true to a Mark, I could with my Gun?

我脑子里想到各种各样的计划，想消灭这些野蛮的家伙，或者至少吓他们一下，让他们再也不敢上岛来。如果真的想把我酝酿过的计划通通记载下来的话，那就会比这本书还要厚了。然而，这一切都是不切实际的空想；只想不做，起不了任何作用。更何况如果他们二三十人成群结伙而来，我孤身一人怎么能对付他们呢？他们带着标枪或弓箭之类的武器，射起来能像我的枪打得一样准。

On the basic relations of the Jiaoxun" s annotate and Zhaoqi" s, this thesis concludes the character of the Jiaoxuns annotate: the first, paying attention to collect the language material; the second, explaining perfect; the third, pointing the undering meaning; the forth, slathering same language pattern proof; the fifth, using the parsing.

本文在把握焦循的训释与赵歧的注疏的基本关系的基础上，用具体事例说明了焦循训诂上的如下特点：一，注意搜集语言材料；二，义项解释完备；三，指明假借；四，大量使用同文比证；五，运用语法分析的方法等。

D-Pantothenyl alcohol, also called ortho-vitamin 85, is an important nutrition suppled substance. It has been widely applied in the field such as medicine, cosmetic, foodstuff, feed additive, and so on. The preparation of D-pantothenyl alcohol and the optimization of key factor are discussed mainly in this paper. It mainly includes three section.In the first section, with formaldehyde, isobutyl aldehyde and diethyl oxalate as the starting materials, D-pantolactone is prepared via three steps including condensation, catalytic hydrogenation and physical resolution. The specific rotatory power of the product is consistent with imported product.

D-泛醇，俗称原维生素B_5，属维生素B旋类营养增补剂，广泛应用于医药、化妆品、食品、饲料等领域，本文着重探讨了其制备及关键因素的优化，主要内容可分三部分：第一是D-泛内酯的制备，先以甲醛、异丁醛和草酸二乙酯为起始原料合成酮基泛内酯，再经催化氢化得到DL-泛内酯，然后通过物理拆分获得D-泛内酯，得到产物的比旋光度与进口产品基本一致。

The natural realism that the Barbizon school promoted between 1830 and 1870 paved the way for the Impressionists, including Claude Monet and Paul Cezanne, as well as American artists in the 19th and 20th centuries.

一八三○到一八七○年间巴比松画派所提倡的自然写实主义为印象主义画家（包括克劳德。莫内和保罗。塞尚）铺了路，也影响了十九和二十世纪的美国艺术家。

Under catalysis of AlCl3, trans-1-chloro-3-phenyl-1-propen-3-one was first prepared using benzoyl chloride and acetylene in CH2Cl2 at 20~25℃, which the yield is 7% higher than that in CCl4 at 40~45℃.

通过对其反应条件的研究，首次用苯甲酰氯和乙炔在三氯化铝作用下合成出反－3-苯基－1-氯－1-丙烯－3-酮；并发现用二氯甲烷作介质在20~25℃下的反应产率，比用四氯化碳作介质在40~45℃下的反应产率约高7%。

Cellulose benzoate,the degree of substitution of which was calculated from the content of C determined by element analysis,was prepared from microcrystalline celluloseand benzoyl chloride under heterogeneous condition and characterized by FT-IR and~1H-NMR.

研究了微晶纤维素和苯甲酰氯在多相条件下合成制备纤维素苯甲酸酯的反应，通过元素分析所得碳的质量百分含量计算了产物的取代度，并系统研究了吡啶与N，N-二甲基乙酰胺或与三乙胺混合反应溶剂、苯甲酰氯与纤维素羟基的摩尔比r、反应温度和反应时间对D S的影响，用FT-IR和1H-NM R对产物进行了表征。

After domestic leading brand of color cosmetics Karslan's successful entering into mass market with its sister brand Kafellon, the third brand Lenchom entered the high and mid grade consumption groups relying on the products structure " color cosmetics + skin care"; on the basis of original consumption groups and product series, the two big brands Color Zone and Charminglady developed new China-made color cosmetics products with high-tech content such as 3D color surge eye shadow, blue polar light Xinmeng combination etc.; the brand Ptking belonging to Hangzhou Proya company not only established workshops by itself and produced independently, but also designed products close to market from the consumer need, and applied the promotion model of color cosmetics with easy operation and high efficiency in the terminal network; color cosmetics oriented in mass such as Shanghai Babyface, Guangzhou Mickey, EFU etc.

国产彩妆领导品牌卡姿兰携手姊妹品牌凯芙兰成功进入大众市场之后，第三品牌莲蔻以&彩妆+护肤&的产品结构切入中高端消费群；色彩地带和嘉魅儿两大品牌在原有消费群体和产品系列的基础上，逐步开发出3D炫彩眼影、蓝极光星梦组合等高技术含量的国产彩妆新品；杭州珀莱雅公司旗下彩妆品牌珀金不仅自建厂房自主生产，而且从消费者需求出发设计贴近市场的产品，并将易于操作且效率较高的彩妆推销模式应用于终端网点；上海贝比诗、广州米奇、EFU等大众定位彩妆则以低价格、高品质、终端形象柜的优势快速进入二、三级城市专卖店市场。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。