Ractopamine is a drug that is used as a feed additive to promote leanness in pigs raised for their meat.
莱克多巴胺是一种添加在饲料当中，用以助长猪只生出“瘦肉”的药物。
2
Product development includes not only the discovery and development of a new drug but also, for example, providing a new longer-active anti-oxidant additive to an automobile engine oil.
产品开发不仅包括一种新药的发明和生产，还包括，比如说，给一种汽车发动机提供更长时效的抗氧化添加剂。
3
Pharmaceutical equipment and high purity water systems are designed so that product contact surfaces are not reactive, additive, or absorptive so the drug product is not adversely altered.