class upper limit是什么意思

用法例句

The Research of Financial Problems of Assets Exfoliation as the State-owned Enterprises Reorganizing to Come into the Market;

国有企业改组上市中资产剥离财务问题的研究

The upper member of Taiyuan Formation in Baiping minefield is composed of three limestone layers(L7,L8 and L9),mudstone and thin coal seams.

白坪井田太原组上段主要由三层灰岩(L7、L8、L9)、泥岩和薄煤层组成,L7灰岩位于该段底部,是一7煤层顶板。

The TL dating data for the sandy sediments of Qiziwan section showed that the stratum which belongs to the upper Basuo Formation of Upper Pleistocene deposited between 32.

30kaBP间,归属于上更新统八所组上部。

Using the optimal partitioning method and Markov chain analysis method, the author has made a mathematical statistical study on the lithologies of the upper member of Yuanli Formation, Qingbaikou System as well as on 14 elements, including As, Sb, Cu and Pb, obtained from spectral semiquantitative analysis of the systematic samples collected from this member.

本文采用最优分割和马尔柯夫链分析方法 ,对丰城陶沙南部地区青白口纪源里组上段的岩性及其系统样品的光谱半定量分析的As、Sb、Cu、Pb等14种元素进行数理统计 ,探讨其地层划分、对比 ,并对其沉积环境进行分析。

Characteristics and formation mechanism of oil shale in the upper member of the Dalazi Formation in the Songjiang basin, Jilin;

吉林松江盆地大拉子组上段油页岩特征及成矿机制