百年帝国
main materials or components 主材indirect materials such as alcohol or packing material辅材，间接物料，如酒精，纸箱类
俺是陆军PLA
original supplementary materials辅料 [汉英法学大词典]supplementary materials辅料 [汉英化学大词典]adjuvant ;auxiliary materials ;rubber stock ingrediet辅料 [汉英进出口商品词汇大全]accessories
iamjiaying
辅材：auxiliary material（辅助材料）主材：main material（主要材料）【复数形式】auxiliary materials，main materials【例子】and besides, the invention has few auxiliary material kinds in a prescription,simple production process and low cost.另外处方中的辅料种类少，生产过程简单，成本低。Historically, the main material for makeing tables has been wood, but the metal and stone have also been used.从历史上来讲，制作桌子的主要材料是木材，但是金属和石材也有应用。
