查询词典 latency period

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。

New methods for preventing and treating bottom water coning are found out through deeper understanding of the development practice and rational adjustment, which are to control liquid production in low water cut period, to produce oil and water simultaneously in medium water cut period, and to drill side - track well or to shut well down to kill coning in high water cut period.

针对小型块状边底水油藏特征，编制了适合油藏特点的开发方案，在开发实践中不断加深认识，合理调整，探索出低含水期控制液量、中含水期油水同采、高含水期老井侧钻、关井压锥等有效防治扣治理底水锥进的新方法，形成了小型边底水油田开发的成熟技术，实现了油田高速高效开发，为今后同类型油田的开发提供了借鉴。

The saving-water effect of Radish and Cabbage under PFM and appropriate irrigation,and the drought-resisting of radish seedling which seed was soaked by CaCl_2 were systematicly reseached by field observation and the experiment in door.The main results were summaried as follows:The soil temperature of 0~20cm cultivated layer was increased 3-4.5℃ in early growth period was only 1℃ in late growth period by PFM;there was more water saved up to 20.84mm in 0~60cm soil layer by PFM than no PFM in the early growth period of Radish;the yield and water use efficiency of Radish in L4 were exceeded respectively 10.1% and 21.9% of that contrast, the yield and water use efficiency of Cabbage in G4 were exceeded respectively 8.7% and 26.58% of that contrast, under PFM and appropriate irrigation.

主要研究结果如下：地膜覆盖在植株生长前期耕作层平均可增温3～4.5℃，在生长后期增温幅度减小，仅有1℃左右；地膜覆盖在植株生长前期可有效的保持土壤水分，在萝卜生长前期，使0～60cm土层内多储水20.84mm；在覆膜不灌水充分利用自然降雨的条件下生产萝卜，可比裸地正常灌水萝卜增产10.1%，水分利用效率提高21.9%；覆膜只浇一水生产甘蓝，可比裸地正常灌水生产甘蓝增产8.7%，水分利用效率提高26.58%。

Analog output can display output results.

可以模拟输出显示输出效果。

It implied that RAPD technique pro vided a new alternative for checking irradiation induced effects.

对扩增产物进行数据分析，结果表明RAPD技术能够检测出辐射后唐菖蒲基因组变异情况，可用于对唐菖蒲辐射后基因变异的分析。