Data of daily mean temperature,precipitation,sunshine hours and tea yield in Xuancheng area from 1979 to 2008 were used to analyze the relationship between lowe
在坝体填筑中,能否达到设计要求的填筑质量标准,能否做到以最小的投入获得最大的经济技术效果,首先在于求得经济合理的压实参数。为此,卧牛湖水电站大坝工程工地进行了砂砾石料碾
[Objective] The study aimed to discuss the spatial changes of negative air ion concentration in Hefei City.[Method] Based on the observation of air ions,tempera
<正> 唐初统治者鉴于隋王朝速亡的教训,十分重视总结历代兴亡成败的经验,注意历史著述的编纂,从而促进了官、私修史的发展。私家著述大量涌现,如李延寿的《面史》、《北史》,杜佑的《通典》等,其中尤以刘知几的《史通》最为著名。刘知几(661—721年)是唐代杰出的史学家和进步思想家。本名子玄,彭城(今徐州)人。十七岁前,已遍读群史,二十岁登进士第,后在朝廷内任史官三十多年,“掌知国史”,
<正> 陈云同志是我们党老一辈的无产阶级革命家,是我国经济工作的卓越领导人。他能够在经济问题上提出一系列精辟的见解,做出重大贡献,同他认真学习和创造性地运用毛泽东哲学思想,有着直接的关系。收集在《陈云同志文稿选编》中的那些文章,虽然直接讲的是经济问题,但处处闪耀着毛泽东哲学思想的光辉。这是我们学习陈云同志经济思想时,绝不可忽视的。
[Objective]The aim was to study the cold wave in Hexi Corridor in 2011 and to summarize report experience.[Method]Routine observation data and Ecmwf numerical p
Firstly,agriculture,industry and tourism in the Yangtze River Delta,Pearl River Delta and Bohai Economic Rim were chosen to represent the primary,secondary and
[Objective]The research aimed to initially study degradation effect of the COD Cr in sewage by two psychrotrophs. [Method] Two psychrotrophs were isolated from
在无野外现场联机测图条件下,发挥全站仪数据卡资源作用,将数据卡数据转换为EPSW的*.cor格式文件,在其平台上编辑成图。
Based on analyzing and summarizing the previous research results,the existing problems in the researches of tourism resources development in the ecological econ