查询词典 effectiveness for a given period of time

At the same time, the historical term "technology" in the prehistorical civilization period, ancient civilization period, the axial period and the era of technology and science is carefully explored.

雅斯贝斯从文明形态的角度对历史进行分期，并对史前期文明、古代文明时期、轴心期、以及科学技术时代中技术这一历史现象进行了深入探究。

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

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。

Through the analysis and contrast between HM core and Dh core, combined with the data of AMS14C, six pollen assemblages were ploted Out. At the mean time, six stages about the vegetation change and climate fluctuation were rebuild. In addition, there were three sub-assemblages ploted out in the Atlantic period, Sub-Boreal period and Sub-Atlantic period, which reflected the less vibration of the large-scale climatic change. Pollen assemblage dominated by Concentricystes in the hard and green clay of late Pleistocene can make it sure that the hard green clay layer was formed by water.

通过对上海地区鹤鸣孔和东海1井两个钻孔进行孢粉分析鉴定和对比，结合AMS14C测年等资料，划分出了6个孢粉组合带，恢复了本区的植被演化和气候波动的6个阶段，对鹤鸣孔的大西洋期、亚北方期和亚大西洋期各划分出了两个孢粉组合亚带，反应了大气候环境下气候的次一级波动，在晚更新世晚期的硬绿色粘土中还发现了以环纹藻为主的孢粉组合，从孢粉学角度上证实了这一硬绿色粘土层&水成沉积&的观点。

The thermal gradients of the depression decreased during the Cenozoic time. However, it decreased quickly in Eogene, but only changed a little during the Neogene period The thermal gradient was 540～500℃/km during the period of the Kongdian group deposition, 500～400℃/km during the period of Shahejie group, 400～385℃/km of Dongying group and 385～355℃/km during the Neogene.

研究结果表明，济阳坳陷新生代以来的古地温梯度是逐渐降低的，但在早第三纪时期下降的幅度较大，而在晚第三纪－第四纪则下降的幅度明显较小；济阳坳陷在孔店组沉积时期的地温梯度为540～500℃/km之间，沙河街沉积时期为500～400℃/km，东营组沉积时期为400～385℃/km，晚第三纪时期为385～355℃/km，第四纪以来基本未变。

After that, the important equation for calculating reverberation time is given based on the definition of reverberation time and least squares method. Finally, we use our new method to calculate reverberation time in a rectangular enclosure; we also compare our results with those given by experiment and Sabine's equation. The comparison shows that the new method is more effective and accurate than Sabine's equation in calculating reverberation time of small enclosures.

给出了描述小尺度封闭空间内声场的有限元模型；在该模型的基础上推导了计算小尺度封闭空间内混响时间的方法，并编制了相应的计算机程式；在算例部分，计算了一矩形封闭空间内的混响时间，通过与实验结果进行比较，验证了这一方法的正确性。

System given value Parameter and so on sampling period by the keyboard entry, and may revise as necessary, assigns at the same time the temperature and the sampling period demonstrates on LED.

系统的给定值等参数可由键盘输入，并可以随时修改，给定温度和PID的参数可显示在LED上。

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记得免费小说网kanwen.com在2009年一月份的时候，遇到了百年难得一次的好事，那一个月我每天的习惯就是site看着一小时就变化的收录，心里高兴的不得了，经过一个星期的观察，发现了个问题，免费小说网在建立6个月，也就是半年的时候，百度就开始疯狂的收录，可以这么说，大部分的新网站百度都有个考察期，当考察期一过，接下来就是百度对你每天每时每刻的更新，不过当然你自己网站的更新也要及时，你更新的越及时，百度也相应的及时，这也是免费小说网在一个星期内收录增加到一万五千的收录。

Total volume of water flowing through a given cross-section of water course during a given period of time.

在给定时间内，流过水道中一个给定截面的水的总体积。

When you consolidate you are generally given a longer period of time to repay than you were given with the unconsolidated debt.

当你巩固你通常给予更长的时间来报答您给予较松散的债务。

He studied their excrement for evidence of livestock hair.

他为家畜毛的证据研究他们的粪便。

Loneliness is not grounds for deportation, deportation of the people are not all lonely people.

寂寞也不是放逐的理由，放逐的人也并不都是孤独的人。