秦置。 秦王政二十六年（前221），天下分三十六郡，以古相邑置相县(今淮北市相山区)，属泗水郡。 秦二世元年（前209）七月，陈胜、吴广起义，占领相县。二年（前208），秦将章邯克相县。
本文研究了广西扶绥县柳桥地区二叠纪末期的浅水相小有孔虫动物群。
A shallow water smaller foraminifera fauna is studied from limestone intercalations of the upper Permian chert from Liuqiao area, Guangxi Zhuang Autonomous Region, China.
首次利用龙江县硅灰石研制出了高压电瓷，并测试了其晶相组成和性能。
The high tension electroceramics using Long Jiang county wollastonite as a main material were successfully developed first.
方法：数据来源于神木县有关机构2007—2009年相关统计数据，运用描述性统计分析方法进行分析。
Methods: A descriptive analysis was conducted by using the gray information and statistical data obtained from relevant agencies from 2007 to 2009 at Shenmu County.
应用推荐