gritn.砂砾;粗砂石;勇气;决心vt.覆以砂砾;咬紧牙关vi.发出刺耳声
grit content砂粒骨料含量
grit channel沉砂槽
grit washing洗砂
grit stratum砂砾层
grit arrester焦粉捕集器
grit disposal沉砂处置
grit emission灰粒排放
grit hardness砂浆强度
grit blasting喷钢砂处理
grit ceramics砂陶