expression vectors的用法和樣例：
例句
- The baculovirus expression system has been used extensively for the expression of recombinant proteins in insect cells.
摘要昆蟲桿狀病毒表達載體系統已廣泛應用于表達重組蛋白。 - This paper reviews two basic types of epitope presentation and polypeptide expression systems, and discusses the development and application prospect of plant virus vector.
文章主要介紹了抗原展示系統和多肽表達系統，并分別列舉一些植物病毒作為表達載體的研究進展情況以及應用前景。
