煤灰色的

In some way, the nature of the geochemical field shows that the deep fluid took part in the energy mineral reservoir formation and mineralization.2、 In zones with the strong tectonic activity and basement faults, the elements combination of petroleum is complex and the material from deep resource can be found in which. The character of elements geochemical and carbon isotope all show that there are deep fluid components in some Energy Minerals. The material source of the water accompanying with petroleum reservoir is complex, and which with multi-sources. The character of elements geochemical shows that the uranium of Dongsheng uran ore comes from the upper crust, the greyish-green gritstone and hoary kaolinised argillaceous siltstone is important for the formation of uranium deposits,and the grey gritstone is great potential to surveying uranium deposits .

基底断裂带和构造活动强的区域，原油中元素组合复杂，并含有深源物质；元素地球化学特征和同位素特征反映部分能源矿产中含有深部流体成分；盆地内油气藏伴生水的物质来源较为复杂，具有多源性；元素地球化学特征显示东胜铀矿的铀源主要来自上地壳，灰白色高岭土化泥质粉砂岩及灰绿色粗砂岩对铀矿的形成具有重要的意义，灰色粗砂岩具有良好的找矿潜力；元素地球化学特征还表明，黑岱沟煤及煤层夹矸中微量元素来源于上地壳。

Based on the application of systematic reliability and grey system theory and fuzzy mathematics method, the reliability of the man machine environment system of caving fully mechanized face is studied, and the calculating formulas of the effectiveness of extraction system and caving system are also give

综合应用系统可靠性、灰色系统理论和模糊数学方法，研究了放顶煤综采工作面人－机－环境系统可靠性，得到了割煤系统和放煤系统可用度的计算公

According to the actual conditions of power plants,a control program is proposed to realize coal categorized warehouse storage.

本文是以电厂筒仓储煤为研究对象，采用灰色理论和专家系统的知识实现燃煤的分类分仓管理。

And it is concluded that the No.4-2coal seam is a mid-reserve and low-permeable seam, with surrounding rocks having low enclosed system and high permeability. And the coal seam's gas content is low, while its quantity in the roof-sandstone which is the main source of coalface's gas emission is high . The quantitative index used to analyze gas content and gas emission amount are pointed out systematically. And gray association analysis method is adopted to search the main factors affecting coal-bed content and gas emission amount.

系统提出了分析影响煤层瓦斯含量与采面瓦斯涌出量大小的量化因素指标，并将灰色关联分析原理引入煤层瓦斯含量与瓦斯涌出量主控因素的研究中，筛选出了煤层顶板含油指数，顶板砂泥岩比、4-2号煤层顶板以上煤系厚度3个因素指标为影响4-2号煤层瓦斯含量的主控地质因素；煤层埋藏深度，煤层瓦斯含量，煤层顶板含油气砂岩厚度，煤层顶板含油强度及工作面回采进度5个因素为影响综采面瓦斯涌出量的主控因素。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失