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The subsequent reaction of the 2-hydroxyethyl species around 160 K concerns two competing reactions: a reductive elimination with surface hydrogen to yield ethanol, and a β-H elimination to from surface vinyl alcohol.

羟乙基在160 K的转化过程中包括两个互相竞争的化学反应：与表面的氢原子进行还原反应生成乙醇，或失去一个β-H原子生成表面乙烯醇。

The factors A and the rate constants are given at temperature range of 200-1200 K.The results in-dicate that the loss of aβ-hydrogen from 2-hydroxyethyl radical to yield vinyl alcohol and that a 1,3-hydrogen shift to form ethoxy radical have close A factors and rate constants.

用量子化学结果和Eyring过渡态理论计算了200－1200K温度范围内，标题反应的A因子和速度常数，结果表明，2－羟乙基脱去β－H生成乙烯醇与其经［1，3］重排生成乙氧基有相近的A因子和速度常数，且常温下速度较慢，反应难以进行。

Organic nitrogen is prior to inorganic one to get high viscidity, but it had no effect on yield.

在提高发酵液粘度方面有机氮源略有优势，但对多糖产量没有明显影响。

Plant diseases, pests and various execrable environments constitute prominent factors that lead to crop yield reduction. Tobacco is vulnerable to these factors as well. Where tobacco production is concerned, enormous amounts of economic loss are caused by tobacco, mosaic virus alone.

病虫害和各种恶劣环境是造成包括烟草在内的绝大多数农作物减产的主要因素，在烟草生产上，仅烟草花叶病一项每年造成的经济损失就十分巨大。

Markowitz's portfolio theory is tremendous achievement in modern finance, but in his theory, stock price yield obey to normal distribution which have windage with comparison to the fact. Later, many scholars extended and improved his theory.

Markowitz 的证券组合理论是现代金融划时代的成果理论，但是理论中假设股票价格收益率的正态分布与实际情况有偏差，后来许多学者在此基础上作了改进和完善。

With egg yelk as raw material, extracted by aquiferous ethanol and aether, removing water and oil by acetone, we gain phospholipids mixture, and search the extracting conditions. The optimum condition is determined:extracting temperature (20 ), time (60mins), solvent (92%ethanol),solvent quantity (12 times of the yelk), at which yield is highest; using thinlayer chromatography to measure its component, the content of phosphatidylcholine extend to 68.2%.

本文以鸡蛋的卵黄为原料，采用含水乙醇与乙醚提取，通过丙酮脱水去油，得到粗品卵磷脂；并对提取条件进行了优化研究，结果表明：提取时间60分钟，用92％乙醇，加入含水乙醇是蛋黄重的12倍，在20℃时，卵磷脂收率最高；采用薄层扫描法定量检测，所得粗品卵磷脂的纯度高达68.2％。

Goldman Sachs itself looks at separate estimates of labour and capital growth to yield a gap of 5 per cent, which is similar to the British Treasury's own view.

高盛根据各项劳动力和资本增长数据得出的缺口为5%，与英国财政部自身的看法相似。

The yield point stress of SIS is one seventh to fourteenth to that of the ligament and tendon.

SIS在纵轴方向的抗拉强度相当于韧带和肌腱组织的1／7到1／14。

Characterization of the residual stress has been proved to be useful to evaluate elastic modulus, yield strength and hardness of materials.

对材料中由塑性形变引起的表面及亚表面残余应力进行测定是材料科学及工程应用关注的重要问题之一。

If I have to give this time is most likely to yield, which may be 6%.

如果我必须给出这段时间的最有可能的收益率，那可能是6％。

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