... coarse hair sheep skin plate 粗毛绵羊皮褥子 coarse half round file 粗半圆锉 coarse jig 粗粒跳汰机 ...
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It is a new ore dressing process to separate low grade, coarse-size Tin ore by jig, and it is advanced technology.
用跳汰机对低品位锡矿进行粗粒抛废处理是一种选矿新工艺，其技术先进。
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