coarsening长大,粗化coarseadj.粗糙的；粗俗的；非精制的coarse grain system粗粒度系统coarse-aggregatedadj.粗集料的coarse staple fibre粗短纤维coarse tooth cutter粗齿铣刀coarse thread screw粗纹螺钉coarse filter paper[医] 粗[孔]滤纸coarse optimization近似优化coarse sand coating粗砂覆盖层Coarse-fine search粗-精搜索策略Coarse needle biopsy粗针穿刺活检