在线英汉-汉英科技大词典 ... uppertriangularmatrix上三角矩阵 upperTriassicseries上三叠统 uppertrough高空槽 ...
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根据它的地质时代，划分为上三叠统含煤建造和中下侏罗统碎屑岩建造。
According to geological age, it may be divided into Upper Triassic coal-bearing formation and Lower-Middle Jurassic clastic rock formation.
在贵州省关岭地区上三叠统瓦窑组地层中发现了保存完好的海百合化石群。
Recently a rich and well preserved crinoid community has been found in the Late Triassic Wayao Formation in Guanling County, Guizhou Province, China.
摘要青化砭油田上三叠统长2辫状河砂岩储集层物性主要受沉积相及成岩作用的控制。
The reservoir quality is strongly influenced by the depositional facies and diagenesis of the Chang 2 sandstones of braided river facies in Qinghuabian oil field.
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