materials rate材料率
materialsn.原料;素材名词material的复数形式.
materials-intensiveadj.材料密集的
materials engineering材料工程
materials credit slip退料单
materials development材料开发
materials procurement[经] 材料采购
materials certificate材料合格证
materials and capital物资
materials fabrication材料制备
materials substituted材料替代
materials of electrode电极材料