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Diaminoalkanes react with sym - tetrachloroethane to give crystaline 2,2'- Bis -( hexahydropy-rimidine) derivatives 1 - 5, after treatment with aqua ammonia.

利用均四氯乙烷及二氯甲烷的胺化反应，合成了联氢化嘧啶衍生物1～5，4a，8b-反-4，5，8a，9a-四氮杂全氢芴(6)和8b，8c-顺-3a，4a，7a，8a-四氮杂环戊并全氢芴(7)。

PFN or PFH forms binary FBS with ethyl ether, tetrachloromethane, n-heptane and toluene respectively. The critical mutual soluble temperature depends on the contents of FBS.

全氟已烯和全氟壬烯可以和乙醚、正庚烷、四氯化碳和甲苯等有机溶剂形成氟两相体系，其互溶温度与组成有关。

In particular, in recent years, the Scorpion in the treatment of illnesses that found a significant effect, as happened Scorpion Simmer, thromboangiitis obliterans. Scorpion venom can cure cardiovascular disease, various tumors, such as trigeminal neuralgia.

特别是近几年，全蝎在治疗疑难病症上发现有显著的疗效，如全蝎可治疗脉管炎、血栓闭塞，蝎毒可治疗心血管病、各种肿瘤、三叉神经痛等。

Objective: To evaluate the effect of posterior cruciate ligament resection on the tibiofemoral joint gap and its clinical value in total knee replacement.

中文摘要：目的：通过研究全膝关节置换中后交叉韧带切除对于胫股间隙的影响来探讨其在全膝关节置换中的临床意义。

The four Merit Award winners - Pak Sheung-chuen Tozer from Hong Kong, Guazi (Liu Cheng-rui) and Xing Xin from Mainland China (Beijing and Chengdu respectively), and Effe Wu from Taiwan - were all born in late 1970s or early 1980s.

譬如说，与2005年相比，今届得奖者全是年轻一辈的艺术家，而且平均分布在不同地区－－来自香港的白双全、北京的刮子、成都的幸鑫和台湾的吴逸中，全部出生於七十年代末或八十年代初。

The other 98 cases were treated with laser, radiofrequency or ligation for saphenous vein trunk.; cut, electric coagulation, transfixation for vein clusters as additional methods.

对于伴有交通支功能不全的患者，术中结扎或切断交通支，对于严重深静脉瓣功能不全的患者，同时处理深静脉瓣。

The other 98 cases were treated with laser, radiofrequency or ligation for saphenous vein trunk.; cut, electric coagulation, transfixation for vein clusters as additional methods.Perforators were also cutted and ligated as well.

对于伴有交通支功能不全的患者，术中结扎或切断交通支，对于严重深静脉瓣功能不全的患者，同时处理深静脉瓣。

Values, the chemical composition of biotite of them and their petrochemical composition on the corresponding dia grams are all distributed transitionally between the "typi cal areas"; 2 that the micro-elements indicating genesis and the REE distribution parttens display the transitional change from the mines in North to those in South in this region; 3 that their K-Ar age of biotite is distinctively inconsistent with their Rb-Sr age of total rocks; and 4 that there occur several rock body groups with various genetic features which are formed at the corresponding time in the same Pb-Zn ore fields.

具体表现在全岩锶同位素初始比值、黑云母化学成分，岩石化学成分在相应图解上不集中而呈&过渡态&分布；微量元素成因特征及稀土分配型式在本区空间上呈&过渡态&展布；岩浆分异演化过程中各种地球化学演化参数不连续变化；全岩Rb-Sr同位素年龄与黑云母K-Ar年龄值严重不合；同一矿区，普遍发育不同岩性组合的岩体群等等。因此，地洼型多因复成成岩成矿作用在湘南铅锌矿床形成过程中是一个带有普遍性的区域成矿规律。

Background and Objictive:Crohns disease is a main type of inflammatory bowel disease,and is a segmental transmural inflammatory disease of gastrointestinal tract.

背景、目的克罗恩病是炎症性肠病的一个主要类型，是全胃肠道节段性全层炎症性病变。

Double-switch operation is the first choice in correction of DORV with atrioventricular discordance, especially in patients with right ventricular disfunction or tricuspidal regurgitation. If the heart can not be corrected because of combined complicated malformations, the strategy of one ventricular repair can be chosen.

房室连接不一致DORV根治手术应首选double- switch手术，尤其对形态学右心室功能不全和三尖瓣关闭不全者，如果合并多种复杂畸形解剖无法矫治，可选择单个心室的修补方案。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。