环

In recent years, with the development of various good catalysts especially the ruthenium alkylidenes bearing N-heterocyclic carbene ligands, the RCM reaction has been applied widely in the synthesis of complex organic molecules, biological molecules and natural products etc. The Nobel Prize in Chemistry 2005 goes to Yves Chauvin, Robert H.

近二，三十年来，随着各种性能优良的催化剂的不断发展，尤其是含氮杂环卡宾配体的钌催化剂的出现，关环复分解反应在合成复杂有机分子，生物活性大分子以及天然产物等方面已得到了极为广泛的应用。2005 年的诺贝尔化学奖分别授予了 Yves Chauvin，Robert H。

It is necessary to design acquisition and tracking system for code loop and carrier loop in order to detect high dynamic GPS signals.

为检测高动态GPS信号，需要设计码环及载波环捕获与跟踪数字系统。

On a smooth and insulating ring of radius R there is a small ring of mass m and carrying charge q.

一半径为R的光滑绝缘大圆环上有一质量为 m带电为q的小环。

In order to understand the mechanism of anti-inflammatory effect of PA and carvacrol, the superoxide dismutase, glutahoine reductase, glutahoine peroxidase activities in liver and malondialdehyde , cyclooxygenase 2 (COX-2), tumor necrosis factor-α levels were eveluated. Also observed inducible nitric oxide synthase and cyclooxygenase-2 (COX-2) expression and the pathological histology in λ-carrageenan induced paw edema in mice.

本研究首先以醋酸扭体试验评估左手香水抽提物及其活性成分香芹酚是否具有镇痛效果，以福马林舔足试验辨别其镇痛作用是在周边或是中枢，再以λ-角叉菜胶诱导小鼠足跖肿胀试验探讨其抗发炎作用，并分析其肝脏组织中的超氧歧化酶、麸胱甘肽还原酶、麸胱甘肽过氧化酶活性、发炎足跖组织中的脂质过氧化指标产物丙二醛、肿瘤坏死因子-α及环氧化酶-2之含量变化，观察诱导型一氧化氮合成酶及环氧化酶-2之蛋白质表现量，并将肿胀足跖做病理切片观察之，以探讨左手香水抽提物及香芹酚之抗发炎机转。

The cure rate of Yunbao on the diseases was 93.10%,7273% and 83.33% respectively.The effect of ciprofloxacin lactate on purulent catarrhal endometritis was better than that of Yunbao...

乳酸环丙沙星治疗慢性卡他性脓性子宫内膜炎的效果优于"孕宝"，"孕宝"治疗慢性卡他性子宫内膜炎和隐性子宫内膜炎的效果则高于乳酸环丙沙星。

The main component of the celestial globe is a hollow bronze globe, with crisscross grids on the spherical surface, which are used to delineate the exact position of celestial bodies.

整个铜球可以绕一根金属轴转动，转动一周代表一个昼夜，球面与金属轴相交于两点：北天极和南天极。两个极点的指尖，固定在一个南北正立着的大圆环上，大圆环垂直地嵌入水平大圈的两个缺口内，下面四根雕有龙头的立柱支撑着水平大圈，托着整个天体仪。

In this acquisition model, the projection center of the camera does not have to coincide with the rotation axis. Thus, the resulting panoramic images are refereed to as multi-center panoramas.

此论文针对利用旋转一维相机拍摄的方式做研究，此方式取得的环场影像能够符合上述的要求，而由於拍摄时相机中心不需要与旋转轴密合，故又称为多中心环场影像。

The advantage of supercritical carbon dioxide used as an environmental medium in polymerization and reactions in supercritical carbon dioxide are described. It includes homogeneous free radical polymerizations, precipitation free radical polymerizations, dispersion free radical polymerizations, emulsion and inverse emulsion free radical polymerizations, cationic polymerizations, ring-opening polymerization, melt-phase condensation polymerizations, sol-gel polymerizations, polymer blend synthesis, catalytic chain transfer polymerizations, oxidative coupling polymerization, nitroxide-mediated radical dispersion, atom-transfer radical polymerization, reversible addition-fragmentation chain transfer polymerization, electrochemical polymerization, simultaneous one-pot combination of enzymatic and chemical polymerization, copolymerization of carbon dioxide used as monomer.

评述了ScCO2作为聚合反应介质的优点，以及在ScCO2中可进行的聚合反应类型，包括均相聚合、沉淀聚合、分散聚合、乳液及反相乳液聚合、阳离子聚合、开环聚合、熔融态缩聚、溶液-凝胶聚合、聚合物混合合成、链催化转移聚合、氧化-偶合反应聚合、氮氧自由基可控活性聚合、原子转移自由基聚合、可逆加成-断裂链转移、电化学聚合、原子转移聚合与酶催化开环聚合两种活性聚合在ScCO2中同时聚合、二氧化碳作为原料共聚合等。

Performance measurement is also studied which is important in closed-loop supply chain management.The index system of closed-loop supply chain performance measurement is proposed in this dissertation.

该指标体系由闭环供应链的核心企业绩效、分销商绩效、零售商绩效和闭环供应链整体绩效几部分构成，是一个分层次的绩效指标体系。

Over 12.5 million plastic rings were made in order to fabricate simulated chain mail for the movie.

影片中出现的链子甲，需要1250万个小环制成(在第二部《双塔奇兵》中，我们看到阿拉贡和金历各穿了一件，金历的那件还大得不得了)，这么多的塑料环，由两名剧组成员日复一日的串起来，用了16个月(正好是电影的整个拍摄时间)才做成那几件链子甲，而那两个员工的指纹都被磨平了。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。