materials rate材料率materialsn.原料；素材名词material的复数形式.materials being fabricated制造用料materials consumption rate材料消耗率materials-seized machine取料机materials inventory budget库存材料预算materials returned journal[经] 退料日记帐materials handling expense[经] 材料管理费Materials of native accent方音材料materials mechanics testing材料力学实验materials containing grains粗粒土materials handling analysis材料搬运分析