expression system的用法和样例：
例句
- A plant root specific expression promotor sequence, and the recombinant nucleic acid sequence, configurator and expression system, which containing said promotor are disclosed.
本发明提供了一个植物根特异性表达启动子序列，含有该启动子的重组核酸序列，构建体和表达系统。 - His book is a wide-ranging elaboration of imaginative literature as a system of representation, equal in authority, as he thinks, to science.
他的书是想像文学广泛且详尽的成果，是一个表达系统，他认为，在权威上与科学等同。
