The technical-economical index will make a new breakthrough when regrinding further and adding collectors into bulk flotation process.
如果进一步加强细磨，混合应用捕收剂，技术经济指标还会有新的突破。
The results show that only adding risers for process optimization, the original casting process is modified, and the casting technical requirement is met.
结果显示，仅通过增加冒口，就可对原工艺方案进行优化，并满足其技术要求。
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