Drinking water supplies in Ulaanbaatar, the capital of Mongolia, are completely dependent on groundwater sourced from pumping wells located in an alluvial plain
The aim of the present study is to investigate the difference between ITS sequences of Artemisia halodendron Turcz. from different habitat gradients in Horqin S
在上海公安博物馆展出的馆藏文物中,有一本极其普通的《王云五小辞典》,就是这本小辞典和它的七个附件(《无线电通讯教程》、《通讯录》和《简明英文课本》等,见图),在我党的
<正> 嘉峪关为明代万里长城西端的重要关隘,始建于明朝洪武五年(公元一三七二年).距今已有六百余年的历史,但整个关城保存得比较完整,雄姿不减当年。嘉峪关,从“首筑土城”到
At present, the monitoring of embankment deformation in permafrost regions along the Qinghai-Tibet Railway is mainly done manually. However, the harsh climate o
港口大型装卸设备司机的培训与再教育是港口行业安全、高效、节能运行的基本保障,师傅带徒弟的传统培训模式已不能适应企业快速发展的需要,如何提高司机培训的质量和效率是一
To model the creep behavior of frozen soils, three creep stages have to be reasonably described(i.e., primary, secondary and tertiary stages). Based on a series
自改革开放以来,我国经济社会发展取得了令世界瞩目的成就,在此期间,有关国计民生的各项事业都步入到了快速发展的轨道上来。在科学技术迅猛发展的推动下,全媒体时代已经到来
随着传播方式的演进,新媒体已经成为当今社会最主流的传播载体,在校园文化建设中,新媒体发挥着非常重要的作用。高校新媒体传播效率高、互动性强,深受青年学生们的喜爱,逐渐