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The coking and deactivation process of benzene and ethylene alkylation reaction over AB-97 zeolite has been studied systematically. The results of acceleration deactivation reaction indicate that deactivation process go through three phases, high level activity stability period, activity decline period and low level activity stability period. The mechanism of this phenomenon was analyzed by the way of the experiment research of pore structure and acid quality of coked zeolite. It is concluded that reducing the strong acid active centers and crystal outer-surface active centers are benefit to improve the activity stability of zeolite.

在AB-97型分子筛催化剂上对苯/乙烯烷基化制乙苯反应体系的结焦失活历程系统实验研究，催速失活实验结果表明失活历程经历高水平活性稳定期，活性衰退期和低水平活性稳定期三个阶段，并通过对失活催化剂的孔结构及酸性质的实验研究，对这一现象进行了机理分析，认为催化剂改性研究中采用降低强酸活性位和晶粒表面活性位这两种手段都有利于改善催化剂的活性稳定性。

Basing himself mainly on the materials in Zuozhuan, the author has rejected the previous scholars" opinion that the faith in Tian had been shaken and spoiled in this time period as the product of garbing according to their instant need, he states that, they had not given up the worship of the god of Tian, that the declaration of satisfying the god of Tian with moral deeds gradually became the prevailing ideology and greatly influenced the later generations including the Spring and Autumn Period, and that owing to the domination of Tian over people"s life, undoubtedly, some people or groups who were conceived wrong received penalties from the god of Tian, the will of which became the ultimate ground of crime in this period.

由于人们相信天主宰人间的一切，奖善罚恶，人们只有通过德行才能获得天的眷顾，所以，人们相信，那些严重违反德之人或集团理所当然地应该受到天之处罚。换言之，多数人对此确信无疑的时候，天意就成为刑罚的根据。为了避免以推理代替论证，本文利用《左传》中的史料进行了论证。我们在讨论犯罪以及刑罚根据的时候，犯罪及受到刑罚处罚者往往是卑者。德，根据前面的论述，是相互的。比如，父慈子孝，君信臣共。

The research method is combining historic happening with scientific research.This paper is composed of seven chapters. The preface explains briefly the reason of choosing this topic and its significance, as well as the existent research situation in the academic circle.The first chapter presents the subjective and objective historical condition of the formation and development of his view about population quality in four aspects.The second chapter gives a full play to its evolution: it gestates and germinates before the failure of the revolution in 1911, takes shape and develops in the period of Base Area. The following period after the founding of People's Republic of China is its mature time. This view also experiences twisty developments in China's exploring period of socialism.The third part focuses on its major connotations, including Mao's narration on the connotation of Population quality, his analysis of contradiction between population quality and Chinese revolution and construction and of their significance, and the way to enhance Chinese population quality.The fourth chapter makes analyses of philosophical support of Mao's view from three "adherences": adherence to basic principle of seeking truth from facts;adherence to the common acknowledged fact that the people is the main part of history;adherence to the dialectical relation between being and consciousness.

全文共分七个部分：前言部分概述了本文选题的由来及意义，以及目前学术界对这一问题的研究现状；第一部分主要从四个方面论述毛泽东人口素质观形成和发展的主客观历史条件；第二部分描述了毛泽东人口素质观的演变轨迹：大革命失败前人口素质观的孕育和萌芽；根据地时期人口素质观的形成和发展；建国初期人口素质观的成熟以及全面探索社会主义建设时期的曲折发展；第三部分重点介绍了毛泽东人口素质观的主要内涵，包括毛泽东对人口素质内涵的论述，对人口素质与中国革命和建设的矛盾性分析，人口素质与中国革命和建设的重要性分析，以及如何提高中国人口素质等；第四部分分析了毛泽东人口素质观的哲学依据，主要有三个方面：坚持实事求是的基本原则；坚持人民群众是历史的主体；坚持存在与意识的辩证关系。

Poems of the first period were indited in SouthSong Palace, Poems of the second period were indited from Dadu to return to south, Poems of the third period were indited in Xiangshu experience.

第一时期是他在南宋宫廷时的创作，第二时期是北上大都到返回江南这一阶段的创作，第三时期是在江南以及湘蜀游历时的创作。

In case the Agreement is effective for a shorter period only, the Distributor shall be entitled to 20% of the gross sales value of this period, prorated for one year's period.

如果协议不是有效的一个更短的期间仅仅，经销商将有资格获得20%这个期间的总销售量，被按比例分配一个年的期间。

Vista limits maximum number of rearms each installed system to 3, thus user can use Vista for free for up to 120 days if user rearm to reset the trial period (each Vista installation allows 30 days license-free evaluation period) when activation countdown grade period has 0 days or close to 0 days left.

Vista的限制，人数最多rearms安装的每个系统，以三，因此，用户可以使用Vista的免费长达120天，如果用户重新武装设试用期（每Vista安装允许在30天内许可的免费试用期）时，激活倒数级期已0天或接近0天离开。

This paper detaily discussed the technical principle of activated-sludge process and the reaction mechanism of biological nitrogen and phosphorus removal in anaerobic period,anoxic period and aerobic period.

本文系统详细的论述了活性污泥法的工艺原理以及生物除磷脱氮工艺的厌氧、缺氧、好氧反应阶段的反应机理。

The results showed that No.10 to No.30 leaves,charactered with longest growimg period,hight temperature accumulation,were main function leaves.From No.20 leave,sugar beet enter into beet root,sugar inercasing period.From No.55 leaf,it enter into sugar accumulation period.

叶片是甜菜的唯一光合器官，叶片的数量、寿命、生长与枯萎等都影响着甜菜块根的形成和糖份的积累，最终决定着甜菜块根的产量和含糖量，所以，对具有光合作用的功能叶片的研究，尤为重要。

Bull; Wine is a living thing,"the more the more Xiang Chen," does not apply to wine: wine bottle stopper with the outside world through the wood and non-stop air exchange of changes in the life cycle of its age is shallow - the development phase - the mature - the peak period - the degradation period - old period.

bull；葡萄酒是有生命的，&愈陈愈香&不适用于葡萄酒：葡萄酒装瓶后透过木瓶塞与外界空气交换而不停变化，它的生命周期是浅龄期－发展期－成熟期－高峰期－退化期－垂老期。

Testimony to this is the discovery, in excavations, of coins of the Han period but the outstanding monument to this turbulent period must undoubtedly be the fine brick-built tomb uncovered at Lei Cheng Uk in 1955 with its array of typical Han tomb furniture, dateable from the early to middle Eastern Han period.

上述情形，可从在本港发掘到汉代的钱币得到证明。但这动荡时期的显著遗迹，当是一九五五年在李郑屋发现的完整砖墓。这座古墓陈放？典型汉代冥器，可推定为东汉初期至中期的古迹。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。