2、制定详尽的材料开发计划的翻译：2, development of detailed material development plans 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

2, the development of a detailed development plan materials

2, development of detailed material development plans

2nd, formulation exhaustive material development plan

2, development of detailed material development program

2, development of detailed material development plans