特色库 >>> 东北亚特色库 抗战特色库 水利学特色库 近现代报人特色库 广播电视报特色库 学者文库数据库
搜索结果: 1-13 共查到特色库 t-test相关记录13条 . 查询时间(0.052 秒)
Wastewater of hospitals contains materials that would be a threat to alive. These water needs to be checked by a biological purification before leaving to nature. Hospital wastewater has differences t...
This report summarizes the results of ponding tests conducted in Maverick County Water Control and Improvement District No.1 on August 26-27, 2003. Tests were conducted on one unlined canal (Figure 1...
24 January 2007,With an estimated 3 billion or more cases worldwide of waterborne disease caused by unsafe water supplies annually, scientists at a AAAS workshop presented the prototype of an inexpens...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...