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Most MMA competitions are organized with durations that range from 15 minutes (UFC non-championship fights) to 20 minutes to 25 minutes.

最MMA的比赛是有组织与时间范围从15分钟至20分钟至25分钟。

Our projects range from the development of minimally-invasive surgical instruments to new-to-the-world vacuum cleaning technologies.

从微创外科手术工具到最尖端的吸尘技术，我们的开发项目涵盖的领域非常广泛。

The contest started May 16 and the number of songs was narrowed to 10 on Thursday - five initially suggested by the campaign and five write-in candidates. They range from U2's "Beautiful Day" to Smash Mouth's version of "I'm a Believer" to Celine Dion's "You and I."

主题曲评选比赛从5月16日开始，截止上周四，候选歌曲数已压缩至10首，其中包括五首竞选阵营推荐的歌曲和五首网友推荐的歌曲。U2乐队的《美好的一天》、斯玛什·茅斯版的《我是一个信徒》以及席琳·迪翁的《你和我》均在候选歌曲之列。

But the reader's impressions are not evoked by what would seem the most obvious of the five senses to be connected with food, namely the olfactory, it is the colour that makes us feel the warmth and comfort of Hogwarts's Great Hall, the floating candles casting their yellow light, the golden plates, the orange pumpkin juice and the colours of the dishes that range from green over orange and yellow (carrots, boiled potatoes, Yorkshire pudding) to the various shades of brown of the grilled meat, a touch of dark red is added by the ketchup.

但与食物关系最明显的五官——也就是嗅觉——的感受却不是引起读者深刻印象的原因，取而代之的是色彩让我们感到霍格沃茨大厅的温暖与舒适。飘浮在空中的金黄色的烛光，金色的盘子，橙色的南瓜汁，还有多彩的餐具，从绿色、橙色到黄色（胡萝卜、煮土豆、约克夏布丁），还有各种烤肉呈现出的棕色，而番茄酱则添上了一抹深红色。

The simplified peseudo-first-order kinetic model for hydrolyzation of benzal chloride was proposed according to the character of hydrolyzation reaction and the apparent reaction rate constant and activity energy was obtained. The activity energy is 17.73KJ/mol in the temperature range from 900C to 1100C and the model values and experimental values tally well.

根据水解反应的特点，提出了简化的苄叉二氯水解反应拟一级动力学模型，经参数估计，得出了水解反应的宏观反应速率常数和活化能，在900C～1100C温度范围内，反应活化能为E1＝17.73kJ/mol，模型计算值与实验值吻合较好。

The tryptophan residues play important roles in DNA photoreactivation catalyzed by CPD photolyases. We have investigated the action mechanism concerning Trp in DNA photoreactivation, and obtained the results as follows: 1 We proposed a mechanism of photosensitized splitting of CPDs by Trp and Trp-containing peptides. 2 Quantum yields of splitting of the model compounds that a Trp linked covalently a CPD were obtained under 290 nm light in various solvents, these values changing with solvent, range from 0.01 to 0.5. 3 Utilizing pulse radiolysis technique, splitting processes were observed in aqueous solution of the CPDs with hydrated electron and some oxidative species (such as hydroxyl radical, bromic radical and azide radical), and obtained their rate constants. In the case of interaction between CPD and hydrated electron, splitting of the CPD anion, and pyrimidine anion transfer an electron to FAD or Rf, were observed. The process rate was slower one order more than that in photolyase. Minor, but highly mutagenic UV-light-induced lesions are (6-4) photoproducts, which are repaired by (6-4) photolyases. These enzymes, discovered in 1993, are not well characterized and their mechanism is still under investigation.

我们研究它的作用机理，获得以下结果：1）建立了色氨酸及其肽对嘧啶二聚体光敏化裂解的直接修复作用机理模型；2）获得了色氨酸共价键连接于嘧啶二聚体的化合物在多种溶剂中290nm光辐照裂解的量子效率，其值随溶剂而变化，范围在0.01-0.5；3）运用脉冲辐解观察到嘧啶二聚体与水合电子和一些氧化性的自由基作用裂解过程，得到相应速率常数；对二聚体与水合电子作用发生裂解以及向FAD返还电子的过程进行了体外模拟；4）（6-4）光解酶的作用机理中一个关键假定是氧杂环丁烷中间体在接受电子后能自发裂解，恢复二嘧啶的结构。

Exposed rock strata range from the 1.7 billion-year-old Vishnu Schist of the Inner Gorge, to the pale caprock Kaibab limestone deposited 250 million years ago, to the 1 million-year-old black lava flows in the western canyon.

暴露岩层中，从1.7亿岁片岩他人的峡谷内，到帕莱盖层kaibab石灰石存入250万多年前，以100万英镑岁黑色熔岩流在西部大峡谷。

The latices were stable ,thixotropic and monodisperse .The particle sizes range from 192 to 94 nm depending on the acrylamide fractions. The Hofmann reactions of these latices were carried out to introduce primary amines on the particle surface.

由于一直以来，丙烯酰胺-苯乙烯的共聚物胶乳只能用于制备两性胶乳，为了得到较高的胺化度，我们对不同单体配比的丙烯酰胺-苯乙烯共聚物胶乳进行Hofmann反应，探讨了丙烯酰胺在单体中所占的比例对Hofmann反应的影响。

With the initial glucose concentration varying within a range from 0 to 30 g/L,themaximal cell densities achieved in mixotrophic growth were able to be 3.4 folds and5.3 folds of those in photoautotrophic growth at light intensities of 160μE m-2 s-1 and16μE m-2 s-1,respectively.

葡萄糖浓度在0-30g/L范围内变化时，在光强160μE m-2 s-1和16μE m-2 s-1下，混合营养生长的最大细胞密度分别可以达到光自养生长的3.4倍和5.3倍。

Methods We used Amphotericin B for fungous septicemia complicated with allo-geneic hematopoietic stem cell transplantation (2 cases of server aplastic anemia, 1 case of acute lymphoblastic leukemia) or chemotherapy (2 cases of chronic lymphoblastic leukemia,5 cases of acute monoblastic leukemia). The long-term of one to three months Amphotericin B was used at total dose range from 1750 to 3115 microgram with drug prophylaxis and care.

对异基因造血干细胞移植3例（SAA 2例、ALL 1 例）和白血病化疗后7例（CLL 2例、M55例），出现真菌性败血症时应用长程（1～3个月）的两性霉素B治疗，总剂量为1750～3115 mg，观察其疗效和并发症，且对并发症采用药物预防和护理。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失