环

The change of cisterna ambiens is of significant for treatment and prognosis,so it is necessary to observe the dynamic change of cisterna ambiens,for treating truly and estimating prognosis right.

环池改变对重型颅脑损伤的Medicine治疗及预后有重要意义，动态观察环池的变化是必要的，有利于准确施治及正确判断预后。

Focused on many problems existing in pressure control system of drilling pipe friction welding,such as high failure rate and poor amenability,the basic principles of friction welding and electro-hydraulic proportional technique were briefly described.

针对焊接钻杆连续驱动摩擦焊机采用开关阀组成压力控制系统存在故障几率高、可控性差等问题，将电液比例控制技术应用在摩擦焊压力控制中，实现了摩擦焊轴向压力闭环控制、滑台进给速度的开环控制；可对摩擦焊机主轴速度、轴向压力、轴向缩短量、主电机电流、油温等进行实时检测。

Then Doripenem came into the market in the July ,2005. We studied the synthesis of Doripemen.Firstly, we synthesized the chemical 2 from the starting material------o-hydroxylphenylacylamine through Reformastky reaction, alkylation, Diekmann reaction, enolization, esterification and etc. Secondly, we synthesized the chemical 3 from L — hydroxylproline through the protection of carboxyl, amidogen and hydroxyl group, reduction by NaBr, SN_2 substitution and Mitsumobu reaction.

我们以水杨酰胺为起始原料，经Reformatsky反应、烷基化、Diekmann环合、烯醇化、酯化等反应合成双环母核2；再从L-羟基脯氨酸出发，经酯化保护羧基、保护氨基、保护羟基、硼氢化还原酯得醇、Sn2取代和Mitsumobu反应等合成巯基侧链3；最后由化合物3经脱保护、水解得硫醇，和化合物2在二异丙基乙基胺的作用下缩合，最后Pd／C催化脱保护，历经16步反应最终得到产物多尼培南。

Nitrogen heterocyclics ; Oxygen heterocyclics ; Cobalt ; Ammine complexes

氮杂环化合物；氧杂环化合物；钴；氨络合物

In this paper , two fluorocarbon amphoteric phosphate surfactants were synthesized and their performances were determined.

首先，磷酸二氢钠与环氧氯丙烷开环加成合成2-羟基-3-氯丙基磷酸酯钠，分离提纯后，分析其红外。

We play skyscraping annulus first, skyscraping annulus can reach very tall place, we play corsair later, corsair left and right sides shakes special stimulation, we still have go playing very resemble rotating the You Le establishment of coffee cup, establishment of this You Le is very amused, if did not help good armrest up to be able to slip all the time,will slip, this I feel very interesting, we still have go playing imperial crown swing, establishment of this one You Le won't be very exciting, when rotating, have slightly wind is blown, this feeling seems to blowing fanner, nevertheless, the fanner of its nature, besides this a few swim interestingly again amusedly outside happy establishment, still have a lot of amused You Le establishment!

首先，我们玩极高的环可达到很高极高的环，我们玩之后，左右摇特殊的刺激，我们还去打得非常像旋转您建立的咖啡杯，建立该你乐是很好玩，如果没有帮助好扶手上能够滑滑的时间，我觉得很有趣，我们还去玩，皇冠秋千，建立这一您不会很令人兴奋，当转动，略微风吹，这种感觉似乎吹电风扇，不过，农民的实质，除此之外，还有一部分有趣又快乐的建立，愉快地外还有很多好玩您建立！

Ladder anadiplosis is a non-basic format, while chain anadiplosis is the special form of the basic format.

梯式回环是一种非基本格式，链式回环是基本格式的一种特殊形态。

With analogue computer employed as controller, expriemental open and closed loop tests are performed.

用模拟计算机作为控制器，进行了开环、闭环实验，实验结果表明取得较好的控制效果。

In addition, the Central Distribution Agent Kay also experiment with micro-organisms needed for the production of domestic and imported ancillary equipment, glass apparatus, chemical reagents, laboratory supplies and ancillary raw and auxiliary materials, such as, for example, ring-kai company was authorized to OXOID company in South China microbial agent tested products.

此外，环凯公司还代理经销微生物实验与生产所需配套的国产及进口仪器设备、玻璃仪器、化学试剂、实验室配套用品及原辅材料等，例如环凯公司被授权为OXOID公司中国华南地区微生物检验产品总代理。

Dihydroxy-7, 4′-dimethoxy-dihydrflavonol and -3, 5, 7 -trihydroxy-4′-methoxy- dihydrflavonol were synthesized by selective protection, condensation, epoxidation, cyclization and deprotection from 2, 4, 6-trihydroxyacetophone and anisaldehyde.

以2，4，6-三羟基苯乙酮和茴香醛为起始原料，经选择性保护、缩合、环氧化、关环等步骤首次完成了-3，5-二羟基-7，4′-二甲氧基二氢黄酮醇和-3，5，7-三羟基-4′-甲氧基二氢黄酮醇全合成。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。