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
- time measurement
- time memory
- time meridian
- time metaphor
- TIME No.1
- Time No.1
- time-numerical
- time of arrival positioning
- time of coincidence
- time of dead tide
- time of detachment [X
- time of exposure
- time of fertilizer application
- time of flight
- time-of-flight
- time of flight counter
- time of flight detector
- time-of-flight detector
- time of flight diffraction
- time-of-flight-diffraction ultrasonic test instrument
- time of flight mass spectrometer
- time-of-flight mass spectrometer
- time of flight mass spectrometer (TOFMS)
- time-of-flight mass spectrometer (TOFMS)
- time-of-flight method