工学 >>> 测绘科学技术 >>> 测绘仪器 >>>
搜索结果: 1-7 共查到国际动态 测绘仪器相关记录7条 . 查询时间(2.253 秒)
Scientists have developed new geochemical tracers that can identify hydraulic fracturing flowback fluids that have been spilled or released into the environment.
DURHAM, N.C. – Scientists have developed new geochemical tracers that can identify hydraulic fracturing flowback fluids that have been spilled or released into the environment.
The tracers, which were created by a team of U.S. and French researchers, have been field-tested at a spill site in West Virginia and downstream from an oil and gas brine wastewater treatment plant in...
日本产业技术综合研究所最近制成最小刻度为0.2纳米的钻石标尺,可以测量的距离小到不到头发丝直径的十万分之一,这也是目前世界上刻度最小的标尺。
May 24, 2007,The National Institute of Standards and Technology (NIST) has issued its first-ever reference material designed to improve the performance and reliability of experiments to measure the ma...
14 May 2007,This is the age of watching and being watched. Cameras and other sensors have become so small they can be embedded in door knobs and other places people don’t notice, according to Daniel S...
March 13, 2007,The Food and Drug Administration (FDA) today issued a proposed rule which, if finalized, would benefit both consumers and the food industry by enabling manufacturers of heat-processed l...

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...