松散集料 meaning in English

discrete aggregate
loose aggregate

Coal mine equipment . troughed belt conveyors for loose bulk materials . pulley covers used underground and for above ground . specifications . characteristics . test methods . acceptance testing
采煤设备.松散集料用传输槽带.地面上和地下滑轮盖.规范.特性.试验方法.验收试验
Coal mine equipment . troughed belt conveyors for loose bulk materials . cleaning scrapers and lateral bibs used for underground and for above ground . specifications . characteristics . test methods . acceptance testing
采煤设备.松散集料用传输槽带.地面和地下清除铲运机和侧阀栓.规范.特性.试验方法.验收试验