The natural grade classification of loose-covered rock has a great effect on caving mining efficiency.
松散覆盖岩层的自然分级现象对使用崩落法开采的矿山开采效果有较明显的影响。
The system can be used in the grade classification, standard and individual price evaluation of city land.
该系统可用于城镇土地的分等定级、基准地价确定以及宗地地价评估等。
It could play an important role in grade classification and evaluation of adaptability of all kinds of residential compounds.
对各居民点建设场地适宜性等级划分与评价起到了重要作用。
The fracture-developing index and the grade classification method of fracture were proposed and applied to evaluate the development degree of reservoir fractures.
通过定义储层裂缝发育指数及采用等级划分的方法，对储层裂缝发育情况进行评价分析。
Based on principles of system engineering and analytic hierarchy process modeling, the grade classification of intelligent residential zone by fuzzy information is presented in this paper.
文章由系统工程原理出发，以层次分析法建模，并将模糊信息加入智能居住小区的评级。
Aiming at the problems exiting in grain classification at present, a vertical multistage waterpower device was developed to realize abrasive narrow-grade-classification.
本文主要针对目前磨料微粉分级存在的困难，自行研制了垂直式多级水力分级装置来实现磨料微粉的窄粒级分级。
Aiming at the problems exiting in grain classification at present, a vertical multistage waterpower device was developed to realize abrasive narrow-grade-classification.
本文主要针对目前磨料微粉分级存在的困难，自行研制了垂直式多级水力分级装置来实现磨料微粉的窄粒级分级。
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