improved BP改进BP
improvevt.改善;改进;提高vi.变得更好;改进
improve their service system完善服务体系
Improved Maintenance Program改进的保养计划
improved genetic programming改进遗传规划
Improved Composite Structure改良后的合成结构
improved L-J culture medium改良罗氏培养基
improve qualities of teachers提高教师素质
improve environmental quality环境质量
improve sth. into an excuse利用某事作为借口