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1)  thin and medium seam
薄及中厚煤层
2)  Thin and midium-thickness coal seam groups
薄及中厚煤层群
3)  thin and thinner middle-thick coal seam
薄及较薄中厚煤层
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4)  medium-thickness and high-thickness seams
中厚厚煤层
5)  thinner coal seam
较薄厚煤层
1.
Based on in-situ observation about stress in inclined coal pillar for fully-mechanized top-coal caving face of thinner coal seam and the elastoplastic limit equilibrium theoryt,aking the thickness and angle of coal seam into account,the results and relations are analyzed systematically and completely;and the formula and the distribution laws of stress peak value are obtained.
在较薄厚煤层综放面倾向煤柱支承压力现场实测的基础上,应用弹塑性极限平衡理论,考虑煤层厚度及倾角的影响,分析得出综放面倾向煤柱支承压力峰值位置的计算式及分布规律。
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6)  relatively thinner thick coal seam
较薄厚煤层
1.
Practices and experiences on fully mechanized caving tech. in relatively thinner thick coal seam;
较薄厚煤层综放实践与认识
2.
The practices and experiences on mining by the light supported fully mechanized caving method and the technical problems encountered in mining in the relatively thinner thick coal seam(i.
介绍陶二煤矿较薄厚煤层 ( 3。
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补充资料：中厚相纸
分子式：
CAS号：

性质：用定量在190～210g/m2范围纸基做成的照相纸，是市场最普通的产品，使用范围较广。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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