查询词典 pit coal

Flocculants in wastewater treatment has become increasingly widely used, in which high-performance composite coagulant in water treatment technology occupies an important position, to that end, research synthesis of a new type of high-performance composite PFS purificant PISC, and dying, coal washing, paper and municipal sewage and other industrial wastewater purification experiments confirmed that the water purification agent with the exception of turbidity, detreated reduce COD, BOD5 and SS functions.

在废水处理方面絮凝剂已越来越广泛地被应用，其中高效复合混凝剂在水处理技术中占有十分重要的地位，为此，研究合成了一种新型的高效复合聚铁净化剂PISC，并对印染、洗煤、造纸和城市污水等工业废水进行净化实验，证实该净水剂具有除浊、脱色、降低COD、BOD5及SS的功能。

Instead of pussyfooting around with coking coal, the west may one day address the most egregious imbalance of all.

与其在炼焦煤问题上纠缠，西方有朝一日也许会针对一切失衡中最大的失衡。

The pyrolysis mechanism of nitrogen element in pyridazine as a model compound of coal was investigated by density functional theory method. The Mülliken populations, bond dissociation enthalpies and pyrolysis mechanism of title compound were calculated under theB3LYP/6-31G level.

利用密度泛函理论方法，以哒嗪为煤的模型化合物，在B3LYP/6-31G水平下计算了标题化合物的键布居数和键裂解能，并对其热解机理进行了探讨。

The results show that the levels of the total sulfur and pyritic sulfur vary little in different size grades of coal, but in a same size grade the sulfur content increases with the density grades.

结果显示，全硫和黄铁矿硫在各粒度级煤中分布较均匀，其含量在各密度级煤中的分布随密度级的增大而增大。

An increase of organic sulfur in pyrolysis of Hongmiao coal indicates that the lack of the indigenous hydrogen may be the key factor determining the transformation of pyritic sulfur into organic sulfur.

红庙煤在热解条件下有机硫明显增加表明，内在氢的不足可能是决定黄铁矿无机硫向有机硫转化的关键因素。

The high sulfur coal from Jiexiu in Shanxi is used in this experiment and the influence of removing pyritic sulfur by adding different pyrites depressors on the process of agglomeration was explored in this study,The experiment result shows that adding pyrites depressors on the process of oil agglomeration can improve the sulfur-removing rate.

油团聚是以脱除煤中灰分为主的团聚技术，脱硫的效率很低，采用山西介休的高硫煤，探索在油团聚过程中加入不同的黄铁矿抑制剂(巯基乙酸、重铬酸钾、高锰酸钾)对脱除煤中黄铁矿硫的影响。结果表明加入黄铁矿抑制剂对脱硫效率有一定程度的影响

The results showed that the H2 produced by coal volatile pyrogenation affects on the reduction of pellet.

结果表明，含碳球团中煤热解产生的氢对铁氧化物有还原作用。

There are two parts of work in this thesis. One is to simulate intelligent PID control method based on the poloidal field power supply system of TOKMAK, the other is to design and commission the power supply control system of the equipment for producing acetylene from coal pyrogenation by hydrogen plasma.

本文主要包括两部分内容，一是基于托卡马克装置极向场电源的控制仿真研究了智能PID 控制方法，二是氢等离子体裂解煤制乙炔电源控制系统的设计和实验调试。

Because the temperature of coal volatile pyrogenation differs from the temperature of reduction of iron oxide by H2, H2 releases at the initial stages of reduction, and the reduction efficiency of hydrogen is very low.

由于煤中挥发分的热解析出温度与氢还原铁氧化物的还原温度不一致，氢在还原初期迅速放出，导致氢的还原作用率低；提高温度和加热速度可提高煤中氢的还原作用率和挥发分的利用率。

The project takes pyrogenic dry distillation gas of soft coal in continuous retort as the fuel gas and produces ferroalloy coke and crude tar oil.

本项目是以烟煤在连续炭化炉中热解的干馏煤气作为城市燃气，同时付产铁合金焦和粗焦油。

Through comparing with the results by simulation to study the effects of theprojectile"s final velocity, the angle of rotation and the ballistic trajectory"s migration withdifferent projectile"s rotating speeds, different target"s moving speeds and differentpenetration angles.

通过比较数值模拟的结果来研究不同弹头转速、目标速度、侵彻角对侵彻过程中弹头最终速度、翻转角度和弹道偏移的影响。

I love stationery and all the accoutrement of writing.

我爱文具以及所有的书写的工具装备。