1) central coal preparation plant
中心选煤厂
2) small and medium coal preparation plant
中小型选煤厂
1.
Conversion of cleaning process and equipment for a small and medium coal preparation plant;
中小型选煤厂选煤工艺及设备的改造
3) preparation plant
选煤厂
1.
The screening workshop,breaking preparement workshop,drying workshop are the place of dust concentrating in the preparation plant.
选煤厂的筛分、破碎准备车间,干燥车间是粉尘集中的地方,基本上每个生产及运输环节都有粉尘产生,且污染面大;所以,对粉尘的防治工作就显得尤为重要。
2.
The application in many preparation plants has proved the noticeable economic and social benefits it can obtain.
通过多家选煤厂的推广应用，证明该系统具有显著的经济效益和社会效益。
3.
The paper introduces it use such methods as capture noise abatement, acoustic septum, acoustic enclosure, damping vibration attenuation, wall noise reduction by absorption and etc for the main preparation plant workshops of the scond lining Coal Mine.
介绍了济宁二号煤矿选煤厂主洗车间噪声采取集气消声、隔声屏、隔声罩、阻尼减振以及墙面吸声处理等方法,显著地降低了作业场所噪声及厂区环境噪声。
4) coal preparation plant
选煤厂
1.
Research and practice of process for slime water treatment at a coal preparation plant;
选煤厂洗水处理工艺的研究与实践
2.
Discussion on electric energy conservation in design of a coal preparation plant;
对选煤厂设计中电气节能的探讨
3.
Probing into technological design of crushing classification jigging coal washing in Hongyang coal preparation plant;
红阳矿选煤厂破碎—分级跳汰选煤工艺设计探讨
5) coal washery
选煤厂
1.
Through analyzing various interferences occurring in the PLC monitoring system in the coal washery, this paper expounds the serous consequences probably caused by various interferences in the PLC monitoring system of the coal washery, and puts forward some concrete anti-interference measures.
通过对选煤厂PLC监控系统中出现的各种干扰现象进行分析,阐述了选煤厂PLC监控系统中各种干扰现象可能导致的严重后果,提出了具体的抗干扰措施。
2.
In the light of the features of the production of the coal washery,and from the design thought,structure and function set-up of the collective and distributive monitoring system,this paper introduces a set of collective and distributive monitoring system of the coal washery composed of the industrial controller,PLC,and touching screen,etc.
针对选煤厂的生产特点,从集散监控系统的设计思想、结构及功能设置等几方面介绍了一套由工业控制机、PLC和触摸屏等组成的选煤厂集散监控系统。
3.
Connecting with the practical application of electricity economizer in a certain coal washery, this paper sums up the experiences and results of applying this system electricity economizer.
文章介绍了系统节电技术和适合于选煤厂使用的系统节电器 ,结合某选煤厂的实际应用 ,总结了该系统节电器的使用经验及其效
6) Coal preparation
选煤厂
1.
The technical transformation necessity, content and effect analysis in coal preparation plant, Fangezhuang Coal Mining Industry Branch Co.
介绍了范各庄矿业分公司选煤厂集控系统进行改造的必要性、改造内容及效果分析。
2.
This kind of construction method successfully solve the deviation error of bolt s position, difficulty in constructing, and pressing construction period by using the steel plate to fix embedded bolts on column during the construction of coal preparation plant.
某选煤厂钢结构柱脚螺栓的预埋采用钢板加固法 ,解决了预埋螺栓位置偏差、施工困难、工期紧的难题 。
补充资料：中心
中心
centre
中心【叨饥;ue.Tp] 二阶常微分方程自治系统(*》的轨道在奇点x。的邻域内的一种图形，这里 义二.f(x).*=(x、，x:)，厂二G仁RZ、R“(*)f〔C(G)，而G是一个唯一性的区域.这种图形的特征如下:存在一个凡的邻域U，使得所有在U\}凡{内开始的系统的轨道是围绕凡的闭曲线，点x0本身也称为中心.图中点O就是中心.随着t的增加沿轨道的运动可按顺时针或反时针方向进行(如图中箭头所示).中心是几田卿。B稳定的(但不是渐近稳定的).它的Pom。叮e指数为1.价 例如，当f(x)=A(x一x0)时，点x。是系统(*)的中心，其中A是具有一对纯虚数本征值的常数矩阵.与线性二阶系统情况下出现的其他类型的简单静止点(鞍点(sadd】e)，结点帅以允)或焦点伍尤l‘))相反，中心型的点x。，一般来说，在线性系统右边扰动情况下不保持为中心，不管相对于Ilx一x。11的扰动阶如何小和它们的平滑性如何.它可转变为焦点(稳定的或不稳定的)或中心焦点(见中心和焦点问题(。即。℃andfc‘璐脚卜lem”.对于C’类(f〔C’(G))非线性系统(*)，一个静止点凡在矩阵A=f‘(x。)有两个零本征值情况下也可以是中心.【补注】关于准确的拓扑的定义见【AI]，p.71.
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条