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- rock coal series 石炭系
- The processing techniques of coal series kaolinite are introduced. 介绍了煤系高岭土的几种深加工利用方法。
- Rock coal was used as raw material and Na2CO3 and CaCO3 were used as composite additive, vanadium was extracted via soaking with acidity solution after mixture was baked. 摘要以石煤为原料，加入碳酸钠和碳酸钙组成的复合添加剂，经焙烧、酸浸后提取石煤中的钒。
- The age of Coal Series and its overlying Red Beds of Yunnan and szechuan has been aconflicting problem for almost half a century. 正>一、前言四川与云南中生代红层与煤系的时代问题,是长期间争论的问题。
- Shanle oilfield is an ultra-low permeability coal series interbred reservoir in Tuha field with special geologic condition and complex structures. 鄯勒油田是吐哈油区的一个特低渗煤系互层油藏,地质条件特殊,构造复杂。投产以来,由于衰竭式开采,地层压力持续下降,产量下降幅度大。
- The research reported in this paper, has provided a new industrial application for Anyang coal series kaolinite with high ironcontent. 本研究为高铁含量的安阳煤系高岭岩的工业利用,找到了途径。
- According to research of mineralogy, petrology and geochemistry, we discuss kaolin Mineral composition, chemistry composition, and change rules and origin of Datong coal series. 通过矿物学、岩石学和地球化学研究，对大同煤系高岭岩矿物组成、化学组成，及其变化规律和成因进行了系统探讨。
- On thebasis of describing mineralogy characteristics such as combination electron minro-form, crystallinity of clay minerals, the relationship between coal series clay minerals in theMesozoic Era in Ningxia Area and coal metamorphism was analyzed. 在概述粘土矿物组合、电子显微形态和结晶度等矿物学特征的基础上，探讨了宁夏地区中生代煤系粘土矿物与煤变质的关系。
- Optimum road design in the very soft rock coal mine 极软岩矿井巷道优化设计
- ON THE MESOZOIC COAL SERIES OF WESTERN KIANGSI 赣西地区中生代含煤沉积
- The rock was honeycombed with passages. 岩石上有许多蜂窝状的小孔。
- Many young rock hounds grow up to be geologists. 许许多多爱好收集岩石的少年，长大后成了地质学家。
- Xuancheng coal series montmorillonite clay 宣城煤系蒙脱土
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭岩石。
- sedimentary pyrite deposit in coal series 煤系沉积硫铁矿床
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Research into WebGIS for Soft Rock Coal Mine and It's Application 软岩煤矿网络地理信息系统研究及应用
- The water had worn a channel in the rock. 水把岩石冲出了一条沟。
- He dash the glass bowl to bit on a rock. 他对著石块把玻璃碗砸得粉碎。
- The mountain rise up in a steep wall of rock. 这座山高而陡，形成一道岩石屏障。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
