单词	coal gangue
释义	coal gangue [化] 煤矸石
随便看	backward pruning procedure backward pull backward radiation backward ray cone backward reachability backward reaction backward read backward reading backward reasoning backward recovery backward recovery time backward reference backward referencing backward region backward repositioning backward resistance backward resorption backward reversal backward robot problem solving system back ward roll backward-rotating field backward-rotating wave backward round-the-world echo backward rule backward-running 枕戈以待枕戈击楫枕戈剚刃枕戈坐甲枕戈寝甲枕戈尝胆枕戈待命枕戈待敌枕戈待旦枕戈披甲鉱泉鉱滓鉱物鉱産鉱石鉱脈鉾鉾先銀銀