下降了...

4Based on a fact that the price formula of Asian options can be transformed into that of vanilla European option when the time to maturity is less than or equal to the length of average, we skillfully obtain the analytical price formula for the option on the minimum or the maximum of two geometric average prices and generalize it to obtain the price formula of several average prices for the first time. We also apply the method of [121], which approximates the arithmetic average by the geometric average, to the pricing of opitons on the minimum or the maximum of two arithmetic average prices to obtain Its approximated price formula. Numerical results show that the approximated price is relatively accurate when the riskless interest rate is large or the option is in the money and the volatility of two underlying assets are high and its accuracy is a little reduced but still good when the dividends are considered. However, it is hardly affected by the sampling number.

我们基于观察到的一个事实即当离到期时间小于或等于平均期间时亚洲期权的价格可变换成普通的欧式期权的价格，从而巧妙地得到了两个几何平均价格的最小或最大值期权价格的解析公式，通过简单地推广，首次得到了多个几何平均时的价格公式；将[121]用于算术平均亚洲期权的定价方法推广到两个算术平均价格的最小或最大值期权，从而得到它的渐进公式，数值结果表明：渐进价格的准确性在无风险利率较大或期权为实值且两标的资产的波动率较小时较好，抽样的个数对它没有影响，但考虑红利时它稍有下降但仍较好。

For the PUU/BO-g-VER (n-butanol graft VER network)hybrid film, the miscibility between the soft and hard segments in PUU phase was improved byadding the BO-g-VER network into PUU, resulting in remarkable reinforcement effect andgreat improvements of mechanical properties for the films. In the PUU/200-g-VER [Mn: 200,poly graft VER], the 200-g-VER network had considerable compatibility withboth hard segments and soft segments in PUU phase, then good reinforcement effect wasrealized, giving rise to higher tensile strength and elastic module, lower elongation at break ofthe hybrid films.

由于BO-g-VER与PUU硬段具有较好的相容性且促进了PUU软硬段间的微相混合，导致PUU／BO-g-VER hybrid膜的力学性能有较大程度的提高，体现了明显的增强效果。200-g-VER(分子量为200的单官能团聚醚接枝VER)与PUU软硬段均有很好的相容性，因此PUU／200-g-VER hybrid有较好的增强效果，使胶膜的拉伸强度和弹性模量提高，断裂伸长率下降。

A consultant and former Salomon Brothers grandee, Mr Kaufman ruthlessly dissects the past quarter of a century's financial deregulation.

作为多家公司经济顾问及前所罗门兄弟公司红人的考夫曼先生对一个世纪以来近25年的金融自由化进行了深入的剖析，他向大家展示了放松规制是如何导致信贷标准下降以及招致非议的各种金融创新的。

For distorted book image under random twisted status,by comparing its margin-gray-curve data with the stored margin-gray-curves data,a group of multinomial coefficients whose corresponding twisted status is proximal to that of the to be corrected image can be selected out to determine automatically a group of distortion parameters that is suitable for distortion correction.

任意弯曲状态下的书籍扫描图像可以在数据文件中搜索到与其最接近的弯曲状态，并利用对应的多项式系数自动求得最佳畸变参数，用于图像的畸变校正实验，获得了较好的校正效果，最大误差由未校正时的63%下降到了4.4%。这使得在无需人工测量或调整畸变参数的条件下可自动校正书籍扫描图像。

We have summed up job accomplished by last week , the headman has mentioned our efficiency coming down to some extent , the comparison that the job accomplishes has been ideal but.

我们还总结了上周所完成的工作，组长提到了我们的效率有所下降，但是工作完成的比较理想。

I am 25 years old and work every day to sit at the computer is basically nine hours, I now have some humpback a weak immune system has declined.

我25岁了，每天上班对着电脑基本上要坐9个小时，我现在都有些驼背了，身体抵抗力也有所下降。

NEW YORK Dec 18 - The extent of tinnitus loudness and distress contribute to tinnitus seerity, and seeral factors determine the extent of loudness and distress, such as ertigo, hyperacusis and coexisting hearing loss, German inestigators report in the December issue of the Archies of Otolaryngology -- Head and Neck Surgery.

纽约12月18-德国研究者发表在耳鼻喉科学分册——头颈外科学12月刊上的文章提到：耳鸣响度和痛苦的程度决定了耳鸣的严重性，有很多因素决定了响度的大小和不适的感觉，比如说眩晕，听觉过敏还有并发的听觉下降。

After finding the reason which causes the sands to sink, weGived a improving measure, which is opening some litter holes at the pipe,similarly thepulse immixture the typical,in the subsequent experiment, the pulse was proved that it isbetter than the typical on many performances, include an important performance—watertlow rate.

在分析沙粒下降原因的基础上，提出了改进措施，即在提升管上钻若干个小孔，类似将常规气提装置的原理应用过来，在随后的实验中，证实了改进后的气提装置在诸多性能上要优于常规气提，包括水流量这个重要的参数。

Equity financing preference results in the decreasing of company finance quality and losses of investors and the deficiency of efficiency in capital market.

过度的股权融资导致了上市公司的质量下降，投资者的利益损失，降低了资本市场资源配置的效率。

The substituted half-sandwich titaconece with bulky alkoxyl group [CpTiC1〓 or CpTi 〓] or indene ring can not be fluorinated by BF〓·Et〓O under the selected condition, but still coordinates with the BF〓, this coordination then enhances the steric effect that stabilizes the precursor and hinders the reduction of the Ti to the Ti species, reflected in the decrease in polymerization activity.

但是这个转化受主催化剂分子的空间位阻和聚合反应温度的影响，当主催化剂为大位阻的烷氧基取代茂钛络合物或茚钛络合物时，在一般的聚合温度下BF〓不能对它们进行氟化，但可以和其中的OR配位，这种配位进一步加剧了空间位阻，从而阻碍了活性中心的形成，导致催化活性的下降。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。