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- 与 可选择的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Markov forecast model, time series method (triple exponential smoothing method and a combined of triple exponential smoothing method and Markov model) and stepwise regression forecast method were choosed, and the basic principles and processes of the three models were analyzed and compared. Based on above, the three methods were used to predict population dynamic of Cricetulus barabansis and Meriones unguiculatus. The characteristic, accuracy and applicability of three methods were analysed and compared. The results showed that,(1) Markov model belongs to a middle-long time forecast model, and the result was interval forecast, but it reached the requirement of forecasting the harmful population dynamic of rodents. Through the forecasted population dynamic of Cricetulus barabansis and Meriones unguiculatus in 2004, the results were accurate; this meant that Markov model was a good forecast model to Cricetulus barabansis and Meriones unguiculatus population.
选择马尔可夫链预测模型、时间序列分析法(三次指数平滑法、三次指数平滑法和马尔可夫链预测模型的组合预测法)和逐步回归预测法,对这三种模型的基本原理、模型的构建过程进行对比分析,在此基础上用此三种方法预测了黑线仓鼠和长爪沙鼠的种群数量,并对三种方法的特点、预测的准确度和适用范围进行了比较分析,结果表明:(1)马尔可夫链预测模型属于中长期预测,预测的结果为区间预测,但对于害鼠种群数量的预测来说已经达到要求,通过对2004年黑线仓鼠和长爪沙鼠种群数量的预测,预测的结果都比较准确,这说明对于预测黑线仓鼠和长爪沙鼠种群的数量动态,马尔可夫链模型是比较好的模型。
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(1)raising of PCNA protein expression after pre-operative radiotherapy of esophageal carcinoma may signify the repopulation of tumor cells.(2) The prognosis differed from different PCNA expression before or after radiation, it may be beneficial to select the best treatment plan and as the evaluating criteria.
(1)食管癌放疗后PCNA蛋白表达升高,可能存在加速再增殖;(2)疗前、疗后PCNA蛋白表达的预测性不同,可指导临床选择最有效治疗方案,可作为评价预后指标。
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Based on the situation in Shanghai. this paper applys the theories of in tegration of city and countryside. agriculture in city countryside. agricultur- al modernization arid sustainable agricultural development to deal with the achiveruen t of national industrialization and modernization lie in agrieultura~ modernization ?-? integration of city and countryside -~-? urbanization of rural areas-?-? agriculture in city countryside this is the main clue of the paper. In the view cf history and reality with overall and system. this paper appl~is analysis method of combination of normative and positive. quantattve and qualitive. long-term and short-term and, internal, external arid Shang- hai to discuss relationship among agriculture in city countryside. agricultural modernization and sustainable developrncnt, the history. present and re- straint factors of sustainable development of modern agriculture in city coun- tryside in Shanghai is further analysed. So concepts. goals. index system. selective patterns, developmental strategys and measures of sustainable de- velopment of modern agriculture in city countryside are raisen.
本文立足于上海,依据城乡一体化、都市农业、农业现代化和农业可持续发展理论,围绕着实现国家工业化与现代化的出路在于把农村、农业剩余劳动力转移出来,实现农业现代化——农业剩余劳动力转移必须打破城乡分割,实现城乡一体化——打破城乡分割又必须实现农村城镇化——农村城镇化前提下的农业一定是都市农业的中心线索,全面系统地从历史与现实的角度,运用理论与实践、规范与实证、定性与定量、国内外与上海以及点面相结合的分析方法,探讨了都市农业、农业现代化与可持续发展的关系,分析了上海现代都市农业可持续发展的历史、现状和制约因素,提出了现代都市农业可持续发展的概念和目标、指标体系、选择模式以及发展战略和对策。
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The two drums transmissions are intercrossed for more reasonable weight distribution, realizing higher compaction quality in operation.3.Dual frequency and amplitudes vibration system may obtain optimal compaction for different quality and course materials.
振动系统:双频率和双振幅设置,保证了整机在压实不同性质、不同厚度的铺层时,均可达到最佳的压实效果;可实现单振、双振、静碾等多种选择振动模式,并可在液压元件长期使用磨损后进行频率的补偿调节。
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Methods 156 subjects were randomized into two groups: treatment group in which 79 cases were treated by aerosol inhalation of Chuan Ke Zhiplus routine therapy and control group in which 77 cases were treated by Pulmicort Res pules plus routine therapy, wit
方法选择急性喘息性支气管炎及哮喘急性发作的患儿156例,随机分为治疗组(79例,在常规抗感染止咳的基础上使用喘可治加可必特氧气驱动雾化吸入)和对照组(77例,在常规治疗的基础上加用普米克令舒及可必特氧气驱动雾化吸入),两组其他治疗相同,疗程均为1周。
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And with this type of system, you will be able to select whether you would like to use renewable energy, sustainable energy or coal-fired.
有了这样的系统类型,您可以选择是否要使用可再生能源,可持续能源和燃煤。
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Refer to the diagram, draw the locations of screws on hand winch, angle turner, double-wheel stand top, single-wheel stand top, and drill holes with 8mm percussive drill.
根据阳台结构选择方案 A 或 B (如左/或右有墙,可选 A ,若只有背面墙,可选 B )。2、参考图示,画出手摇器、转角器、双轮顶座、单轮顶座的螺丝孔位,用8MM 钻头打孔。
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There are vertical, horizontal, oil-burning, water-pipe, and gas-pipe various models for the users to choose. Heat exchange machine and collection machine
机型丰富,一机多用:立式、卧式、燃油、燃气、水管、烟管多种机型可供用户自由选择,热交换器与集箱分离,采暖水、热水的负荷可根据需
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Liquid crystal display,operation interface of dialogue betwween human and machines,being able to realize intelligentized operation:automatically pouring water,prewashing, rinsing,bleaching,and cleaning,with30types of washing,programmes available,of which 5types offrequently used programmmes inside,enablingpeople to play to the score.
全电脑大液晶屏幕,人机对话操作界面,可实现智能操作:自动加水,预洗、漂洗、漂白、过清等主程序的全自化,內储30种洗衣程序可供选择,真正做到&随机应变&,并备有5种常用程序。
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With the aim of "guaranteed quality and leading technology", the incorporation is capable of supplying over one thousand different products including bottle tops, spray pumps, powder box, and emulsion vacuum pumps, and providing services in printing, gilding and bronzing.
本企业坚持贯彻&品质保证、技术领先&的宗旨,可为广大化妆品行业提供各种瓶盖、喷泵、粉饼盒、真空乳液泵、印刷、烫金等生产配套和服务,现有千余种产品及配件可供选择。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。