A preliminary study on the parameters for rock loosening by scarifiers 松士机松碎矿岩参数的初步探讨
2.
The drain system of tongchang surface mine in dexing copper mine 德兴铜矿大山选厂碎矿系统分析与技术改造
3.
Eluvial tantalite : eluvial tantalite is found in rubble consisting of fragments and pebbles of varied composition 残积层钽铁矿：残积层钽铁矿发现于由碎片和小鹅卵石成分的碎矿中。
4.
To rationally configurate the crushing equipment so as to form various crushing flowsheets and achieve a high production efficiency and economical results is described and the crushing flowsheets that are suitable for small concentrators under the existing home - made equipment conditions are discussed 论述了对碎矿设备进行合理配置组成不同的碎矿流程，以取得较好的生产效率和经济效益，探求了在国产现有设备条件下适合小型选厂的破碎流程。
