映

In this paper,- and (5)-2,2'-diethynyl-1,1'-binaphthyl with highly stable chiral configurations were employed as structural templates, and a new type of helical cyclophane compounds-3 and-3 were synthesized in enantiopure form by the introduction of benzyl sulfone through Sonogashira coupling reaction, followed by the treatment of disulfone with lithium diisopropylamide.

基於2，2'-二取代的联萘衍生物在手性构型上高度稳定的特点，分别从光学活性的-和-2，2'-二乙炔基-1，1'-联萘结构模板出发，通过Sonogashira偶连反应导入苄基碸，然后用二异丙基氨基锂处理制得的联萘二碸成功地合成了一种新的螺旋环芳分子－对映异构体-3和-3。

I still remember a cold evening in 2003's winter,when the snowflake was blusterous in the sky,and when the road was much pale owning to the ice on the ground, and I had only two choices in front of me,going abroad or pursuing a postgraduate degree,maybe others didn't know my suffering,but I did,for my English was so poor that whichever I chose ,it would not be avail for me at last,I participated in a series of English classes,reading and writing all day long,I was very sorry that I had troubled too many friends, as a result ,I could simply communite with our foreign professor,but the problem was not simple,I got a low mark in my Toefl test,thanked to the language class in the school abroad,I arrived at Quebec three monthes later,my first impression about this city was cold, since my hometown is located in the south of the Yangtze River, I have to imagine what does the 'heavy snow' mean cause there are always snowing lightly,to my surprise,almost half a year it was heavy snowing in the city,and it did really satisfy my desire about the snow,furthermore,we also had a long holiday,when I got there,most of my classmates were prepared for their vacation ,so I could asked for help from the senior, maybe I was not tall but sometimes the snow on the ground was taller than me,actually ,I had a good time when I stayed with my friends for we have a common language named chinese,the language class was simple for me,but the teacher was serious,whether you passed the course or not was depended on her, so you'd better don't offend her,thank godness, I passed this class at first time after a few monthes,then began with the other courses,it was said that chinese students abroad was the most assiduous in the world,and that was ture,usually,we didn't have a strong suit in the ability of a foreign language,since it asked for some understanding in our course,so I had to borrowed the note from others when I first went to class,how times fly,my GPA first was above 4.0 at that time,I phoned my relations,telling them I was okey there,but in the first evening of that holiday,a fire broke out in our dorm,I couldn't find my passport after the incident,though most of our res were moved outside,maybe it was burnt out or was lost at somewhere,but it told me that I couldn't stay longer in this city,we comforted each other for a while,''Goodbye!

雪花在2003年一个寒冷的夜空中无情的肆虐着，回家的大道被雪映的煞白，而摆在我面前的却只有两条窄窄的小路，考研，出国，也许别人不会知道我的痛苦，可是我清楚，其实我的英语很烂，现在不管选那个，好像对我都不利，我疯狂的去参加一Qy系列的英语辅导班，从早到晚大声的阅读，没天没地的做题目，以致招来了很多非议，感觉可以和外教简单交流了，可是我的托福成绩还是不堪入目，不过好在那边学校开了语言课，所以三个月后，我还是顺利来到了加拿大的魁北克省，那里给我的第一感觉就是一个字'冷'，我们江南一般下小雪，大雪是什么只能靠想像了，不过那边将近有大半年的时间都在下大雪，让我这个雪盲好好过了一把雪瘾，不过假期也长，我去的时候大多已不上课了，所以可以找到学姐，学兄，也许是我的个子不太高，不过积雪有时完全可以把我湮没，和他们在一起感觉很亲切，很开心，也许我们在一起都说汉语吧，语言课是比较简单的，不过老师很变态，她说行才行，不行你就是行也不行，所以这个老师是绝对不能得罪的，学了很长一段时间，语言考试通过了，就可以正常上课了，呵呵，都说中国留学生最刻苦了，不苦行么，我们语言能力一般都不是强项，加上课程需要一些理解的能力，初次去听课，不借阅他人的笔记是绝对不行的，时间总是晃的很快，那次的GPA成绩第一次超过了4.0，打了电话回家，报了平安，可是假期的第一个晚上就发生了一些小小的意外，一把无名火把我们住的地方烧了，当时东西都搬出来了，好在没有损失什么，可是后来检查了一下，我的护照怎么都找不到了，也许是烧了吧，也是是掉了，反正这件事也告诉了我，魁北克我是待不长了，朋友们在一起相互惋惜了一阵。

The leafless trees become spires of flame in the sunset, with the blue east for their back-ground, and the stars of the dead calices of flowers, and every withered stem and stubble rimed with frost, contribute something to the mute music.

霞光里，秃树映着淡兰的底景，如燃烧的尖塔，熠熠闪着光；枯萎的花，凋零的茎，霜嵌的残株，合成一曲无声的乐章。

Calix[4]arene is investigated most widely due to its stable conformation and easy derivatization. Among them lots of works reported the chiral calix[4]arenes can be used in enantiomeric recognition and dectection.

杯[4]芳烃因其稳定的构象和易于修饰的特点，成为研究最为广泛的杯芳烃分子，其中大量的文献报道了能够用于对映体识别和检测的手性杯[4]芳烃。

Based on the results of this report and the results of literature reports on the preferred conformation of enantiomeric 3-substituted-1, 4-benzodiazepines, a nucleophilically solvated C3 carbonium ion intermediate resulting from either a P or a M conformation is proposed to be an intermediate.

基於本文所报导的结果及文献所记述之对映异构性在C3位有取代基时的1，4-苯并二氮类的倾向构象，设想提出所观察之现象是由正或负构象所致的一个亲核性经溶剂化的C3阳碳离子为中间体。

The en-kaurene diterpenoid compounds were obtained from genus Caryopteris for the first time.

对映-贝壳杉烯型二萜类化合物为首次从莸属植物中分离得到。

Luying Cateye is the world only specialist manufacture to make high quality and most durable PC 360° warning LED Road Reflecting Marker, which is the best choice for energy saving and environmental protection.

公司研制的Luying Cateye路映猫眼是全世界唯一生产高品质、最耐用的钢化PC 360 °警示LED道路突起路标的专业制造商，节能减排、环保的最佳道路交通安全标记。

Luying Cateye PCB traffic safety mark and SR series high power LED illuminating series earn social trust with good quality and long life-span, and market occupancy rate is increasing steadily.

公司研制的Luying Cateye路映猫眼PCB系列360°警示道路突起路标和SR系列大功率LED照明以其优良的品质，超长的寿命，赢得了社会的信赖，市场占有率逐步提高。

With the development of life science and biological engineering, chiral separation and recognition have been payed close attention universally ,which have important significance in organic chemis- try, life science and medicinal chemistry.

随着生命科学和生物工程的发展，手性拆分和手性识别引起了人们的普遍关注，研究对映体拆分与识别对有机化学、生命科学和医药工业均具有十分重要的意义。

As a result,it is of vital importance to separate the enantiomers of a chiral drug in metabolic studies.

因此，在手性药物代谢的研究中，同时测定对映体是极为重要的。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。