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。