materialmann.材料供应人materialn.材料；原料；素材；资料；题材；物质adj.物质的；重要的；关键的；肉体上的；实质性的materialize one's ideasmaterial handling robot材料搬运机械手material partial factor材料分项系数material feeding system供料系统material and technology物质技术material receiving unit收料单位material with laid pile排绒整理织物material safety circuit本质安全电路material specifications材料规范书material transformation物质变换