要达到多对少磨的目的，需要在破碎阶段利用细碎机尽可能降低物料的粒度，使其达到细碎状态。
To achieve the purpose of to less, need to grind finely machine by crushing phase of material as low as possible, make its reach size finely state.
主成矿期发生于脉岩形成后的构造破碎及岩石蚀变阶段，矿床为构造蚀变岩型金矿床。
The structure breaking up and rock alteration stage after dike rock formation is the main metallogenic epoch. The genesis type of the gold deposit is structure alteration rock type.
我国城市袋装垃圾处理尚处在研发阶段，垃圾破碎设备的条件性破袋破碎、分选、防缠绕、刀具避让等问题是急需解决的关键技术。
Those problems on breaking in condition, choosing, winding preventing and knife avoiding of bag living garbage crusher are key technique needing solution urgently.
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