工学 总论 释 top-down 自上而下 在规划的制定、实施过程中，规划及相关政策的执行者（政府）是主要的参与者，并集中关注在宏观层面决策和贯彻落实衔接的方式。
软件工程 释文 top-down 自顶向下
- cleaning sweeper
- cleaning tanker
- clean limit
- cleanliness
- clean metallurgy of recycled metals
- clean method
- cleanness inspection of raw silk
- clean nuclear energy
- clean of laws
- clean operation room
- clean out waste raw silk
- clean politics culture
- clean rice
- clean room
- cleanroom
- clean room air purification system
- cleanroom auxiliary equipment
- cleanroom filtration system
- clean room fire
- cleanroom software engineering
- clean steel
- clean steel smelting
- clean superconductor
- clean surface
- clean text policy