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Alkylphenols are applied widely as the rubber additives surfactants in domestic and industrial products, antioxidants and so on. As it's decomposer, nonylphenol has a steady chemical characteristics and exist widely in environment. As it's molecule structures are similar as 17beta-estradiol in human body, and it can combine with estradiol receptor simulating it, disrupt endocrine system and induce health damage effect. Many studies on environmental endocrine disrupting chemicals approved that NP have weaken estradiol functions.

烷基酚被广泛用作塑料增塑剂、农药乳化剂、纺织行业的整理剂等，作为其降解产物壬基酚(nonylphenol，NP)的化学性质稳定，环境分布广泛，由于其分子结构与人体内雌二醇的分子结构相似，许多环境内分泌干扰的实验研究结果证实壬基酚具有雌激素样作用，可以模拟雌激素与体内雌激素受体结合，干扰机体的内分泌代谢，导致健康危害效应。

Jared: When we have down-time on set a lot of times you, you concentrate on the scene you're doing, and if it's two-and-a-half pages you're really trying to make the best of that scene 'cause you're gonna put it on-camera and then it's gonna be gone forever, you'll never have a chance to do it again, so we, we sort of focus on the scene at hand.

某幸福小孩：在片场上我们有空闲时间的时候，都会琢磨正在拍的戏，因为你手里都会有2页半的戏要准备好，你要把这些呈现在摄像机前，然后被永久记录，你根本没有机会再拍一次，所以，我们，我们都会专注于正在拍的镜头。

Especially, the development of Ni-MH high-power battery and high-power rare earth hydrogen-storage alloy materials not only complies with the industrial policy on rare earth resource fine processing in China, but also became a key national science project – associated project for electromotion automobile industry; it's the pivot high-tech industry backed by the government and it will also accelerate the transformation of China's abundant rare earth resources to technical and economical advantages; and it will also impel the development of relative industries. Therefore, it plays a critical role to create more economic and social benefits.

特别是镍氢动力电池用低成本、高功率稀土贮氢合金材料的开发，不仅符合我国稀土资源深加工的产业政策，也是国家重点攻关项目——电动汽车产业化的配套项目，是国家重点扶持的高科技产业，将促进我国丰富的稀土资源优势转化为技术经济优势，带动相关产业的发展，具有十分重要的经济效益和社会效益。

I says,"There's no photon in, it's just that when the electron makes a transition it comes" and he says "Well, where does it come from then, how does it come out?"

我说，"原来并没有光子在内，仅在电子产生转换时，光子才出现。"他又问，那当时它从何处而来的？

"I think it's easy talking about it, it's hard to go and do it," said Fletcher.

"我认为说起来很容易，但做得时候就是另外一回事了。"

It doesn't make any sense to say it's OK for the shipping industry and the transport industry to accidentally move stuff around, for the aquarium trade to move stuff around, for the garden trade to move stuff all over the place, but that it's not OK for a conservation biologist who is desperately trying to save a species from extinction to move it 100 miles [about 160 kilometres].

航运业和运输业在不经意间导致了物种的迁移，水族贸易以及园林贸易也曾导致物种的迁移，如果人们对这些都不以为然，相反却对试图通过将动植物迁移100英里(约160公里)来拯救那些濒临灭绝的物种的生物学家横加干涉，这岂不是毫无意义吗。

"We've been able to take very large fibroids (12-14 cm in diameter) out through these small incisions by first morsellating the fibroid with a scalpel before enucleating it," said Dr. Glasser, noting the advantage over laparoscopy, which is not recommended for fibroids greater than 7 cm in diameter."It's a little different approach, but it works very well and it's a hemostatic way of performing a myomectomy," he added.

Glasser医师表示，在清除步骤前，会先以解剖刀捣碎纤维瘤，如此一来，我们可以经由这些小切口来去除很大的纤维瘤(12到14公分的直径)；相较於腹腔镜手术法，这个方法具有较高的效益，因为腹腔镜手术法并不建议用在去除直径大於7公分的纤维瘤；这个方法有一点不同，但是效果很好，而且在进行肌瘤切除时，此法具有很好的止血性。

In general, this paper includes several parts, shown as the following: The first part summarizes the background and outline of stock index future and introduce briefly its local status and CSI 300 stock index future contract. The second part has a retrospect of the main academic papers of both local or overseas, and also a discussion of relevant hedge strategies and models, to lay a solid theoretical foundation for the empirical analysis and test for the operation process of hedge in latter parts. The third part outlines the principle, key factors and real operation process of hedge. Moreover, it makes a empirical analysis on popular hedge models with HK Hang Seng index. In the end, it test the hedge effect of trading on IF0706, CSI 300 stock index future contract, with CCB select-growth securities fund as present underlying. The fourth and also the last part, explores how to define hedge ratio in china mainland market. It includes the stability test ofβfor local securities portfolio, adjustment of historicalβand best data length for estimation of historicalβ, etc. Also, the thesis makes some beneficial experiments on the definition of best data length for estimation of historicalβ, survey of fashion forβand variation for industryβs. Fortunately, it's got some meaningful results.

按照以上研究思路，本论文论述由以下几个部分构成：第一部分，简要概述股指期货产生的背景和基本情况，对国内股指期货进程和沪深300股指期货合约进行简单介绍；第二部分，回顾海内外股指期货避险研究的主要文献，讨论相关避险策略及避险模型，为后面套期保值策略如何有效运用的实证分析和检验提供理论基础和依据；第三部分，对套期保值的原理、关键因素及实际流程进行概述，并采用香港恒生指数对常用的几种避险模型进行实证分析，最后一揽子以建信优选成长股票型基金为现货标的，实际检验以沪深300股指期货模拟交易IF0706产品进行对冲时的套期保值效果；第四部分，探讨国内确定避险比率的过程，包括国内股票组合β值的稳定性检验、历史β值的修正及估计历史β值的最佳数据长度等，通过数据分析，本文在寻找估计β值的最佳数据长度和考察风格、行业β值的差异上做了较为有益的尝试，并得到了有助于现实操作的结果。

It's either this or that way, it's one way or the other. it should be one direction, it could be on reflection.

它或是这条，或是那条路，它是一条路，或是其他，它应该是一个方向，它可能只是镜象。

It is no longer the place where Billy the white horse stood his ground, and where Stanley Matthews forced others to yield theirs; it's not the place where Jim Montgomery made his save, or where Ricky Villa made his mazy dribble, or where Elton John's uncle got crocked, or where Smith must score, or where some people were on the pitch: they thought it was all over, it was then.

这已不再是当年比利和白马所站之处，不再是斯坦利*马休斯让对手屈服的地方，不再是吉姆*蒙哥马利做出扑救，里奇*维拉进行眼花缭乱运球，不再是让埃尔顿*约翰的叔叔喝的酩酊大醉，促使史密斯必须进球的地方了：当年的人和事已无法重现，他们认为这里的过去都已结束，已成往事了。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。