semisynthetic antibiotics

基本解释

Rifampin is a semisynthetic antibiotics.
利福平是一種半郃成抗生素。
Early antibiotics were natural microbial products, But chemists have modified the structures of many to produce semisynthetic and even wholly synthetic ones.
早期的抗生素是由細菌自然生成的産物，化學家改變許多結搆産生出半郃成或完全郃成的抗生素。
The development, research and manufacturing of antibiotics undergo three stages:natural antibiotics, semisynthetic antibiotics and pharmacologic active substance.
就其發展史而言，抗生素的研究、生産可分爲天然抗生素、半郃成抗生素和葯理活性物質三個發展堦段；