Liskov替代原理
liskov substitution principle
变应原原料
Raw materials of allergens
非常规蛋白饲料原料
protein raw material from the nonconventional plant
非常规饲料原料
non-traditional feed ingredient
unconventional feed
unconventional feed resources
乳清饮料原料
material for whey beverage
塑料原料市场
plastics raw material market
3-丙二硫醇替代试剂
3-Propanedithiol equivalent