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智能流量积算仪计测技术探讨
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作者 唐勇军 《计测技术》 2014年第4期63-66,82,共5页
目前智能流量积算仪的种类繁多,每种类型的流量积算仪的功能和使用方法各不相同,导致在检定过程中不能按单一类型智能流量积算的操作方法来开展其他类型的检定,从而导致检定的复杂和困难。本文通过一些实例分析对智能流量积算仪的校准/... 目前智能流量积算仪的种类繁多,每种类型的流量积算仪的功能和使用方法各不相同,导致在检定过程中不能按单一类型智能流量积算的操作方法来开展其他类型的检定,从而导致检定的复杂和困难。本文通过一些实例分析对智能流量积算仪的校准/检定技术进行了探讨。 展开更多
关键词 流量积算仪 K系数 流量 脉冲 显示单位
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Survey and establishment of Nanshimenzi Bed of Tiaojishan Formation in Qinglong,northern Hebei,China
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作者 WANG Shiying ZHAO Cuilin +2 位作者 ZHU Zhipeng ZHANG Lijun HU Dongyu 《Global Geology》 2017年第1期14-20,共7页
In recent years,many fossil vertebrates,including feathered dinosaurs,have been discovered at Nanshimenzi village,Gangou Town,Qinglong County,Hebei Province,China.A geological section including the fossil-bearing stra... In recent years,many fossil vertebrates,including feathered dinosaurs,have been discovered at Nanshimenzi village,Gangou Town,Qinglong County,Hebei Province,China.A geological section including the fossil-bearing strata was measured at Nanshimenzi,to determine the exact geological age and sedimentary characteristics of the section,and a new lithostratigraphic unit was named as the Nanshimenzi Bed.The Nanshimenzi Bed is about 56.6 m in thickness,mainly consisting of gray sandstones and siltstones and containing fossil vertebrates and several coal streaks.On the basis of survey and comparison,the Nanshimenzi Bed should be assigned to Tiaojishan Formation and probably to the upper part of the formation. 展开更多
关键词 Middle-Late Jurassic Yanliao Biota Tiaojishan Formation Nanshimenzi Bed northeastern China
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