煤

Using modern biology research technique and means,plasmid extract and agarose gel electrophoresis of molecular biology level explore test were carried out for coal with not coal department the hereditary property of Thiobacillus ferrooxidans.

利用现代生物学研究方法和手段，对煤系与非煤系氧化亚铁硫杆菌的遗传特性进行了质粒抽提和琼脂糖凝胶电泳等分子生物学水平的基础性探索试验，对于质粒在硫杆菌中普遍存在的观点提出了质疑。

With rich local reserves of weathered coal resources, coal resources from the weathering of the Yellow Humic extract high molecular weight small, strong activity, performance, and Chinese are the best one of Yellow Humic mineralization.

当地具有丰富储量的风化煤资源，从该风化煤资源提取的黄腐植酸含量高、分子量小、活性强、效能好、是中国最好的矿化黄腐植酸之一。

The clay used for coal combustions is the main fluorine source of the endemic fluorosis. In addition to occurring in apatite and hornblende, fluorine is closely related to the adsorption of illite and mixed-layer clay minerals of smectite and illite.

氟中毒的氟源主要来自拌煤黏土，氟在拌煤黏土中除了以磷灰石、角闪石形式存在外，与伊蒙混层矿物和伊利石的吸附密切相关。

There are coal, iron, sulfur, arsenic, lead, zinc, fluorite, Iceland spar, barite, crystal stone, gypsum, limestone, silica, clay and other 20 kinds of mineral resource. It also has proven the reserves of 3.3 billion tons of coal, There are rich seam for the development and utilization of coal-bed methane, coal-producing counties are key.

境内有煤、铁、硫、砷、铅锌、萤石、冰洲石、重晶石、水晶石、石膏、石灰石、硅石、粘土等20余种矿产资源，已探明煤炭储量33亿吨，煤层中蕴藏着丰富可供开发利用的煤层气，是全国重点产煤县。

The strata are Triassic Xujiahe group sand-shale stratum which containing coal layer. It is nearly three-century history about the coal layer exploitation. In that time, because of the outdated technique and inorganization, the coal caves have the characteristic of randomicity, concealment, universality, no obviously regularity and the small scale for single cave.

坝区地层为三叠系须家河组砂页岩含煤地层，煤层的开采已近300年历史，由于当时开采技术落后、无组织性，导致煤洞具有随机性、隐蔽性、广泛性、单洞规模小、无明显规律等特点。

The mixing ratio is calculated with single coal positive state distribution curve equation integral, the operation is simple, the calculating result is unique, whether single coal reflection distribution curve is not overlapped or partially overlapped, the distribution curve is applicable.

按单煤正态分布曲线方程积分计算混合比，操作简单、计算结果唯一，无论单煤反射率分布曲线是否有部分重叠均适用。

Element analysis data and CO isothermal adsorption data at 30 C and under different pressures were tested.

实验测定了煤的元素分析数据及其30℃、不同压力下煤对CO的等温吸附数据。

Aiming at the situation that the automation degree of jigger is low,ash feedback and jigger control system was developed.

跳汰选煤的自动化程度决定了原煤洗选的效率和产品的质量，针对选煤厂跳汰机自动化程度低的现状，研制了灰分回控跳汰机控制系统，实现了给煤量、排料量、数控风阀的自动控制。

Jigging separation plays a very important part in coal preparation, but it has only a restricted application because of its lower ...

跳汰选煤方法在选煤实践中占重要地位，但因其对细粒物料分选精度低，应用范围受一定限制。

The results show that the Lande factors are 2.002~2.003, which have little change, and that of coal from Zhangji coal mine are little larger than that form Baijigou coal mine. Small particle size, high oxidation temperature and long oxidation time can lead to high corventration and high line height. However, the trend of line width is dispersive.

结果表明：煤自由基因子在2.002~2.003之间，变化不大，张集矿肥煤的因子值稍大于白芨沟无烟煤；煤体粒径越小、氧化温度越高、氧化时间越长，煤自由基浓度越大；线高的变化趋势与自由基浓度变化趋势基本一致；线宽的变化趋势呈分散性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。