词汇	gravity main
释义	gravity main 重力泄水管
随便看	time-frequency collision avoidance system Time-frequency concentration time-frequency contour map Time-frequency correlation time frequency coupling time-frequency data matrix time-frequency decomposition time-frequency distribute Time Frequency Distribution time-frequency distribution time-frequency distribution analysis time-frequency distribution image time frequency distribution reassigned time-frequency domain time-frequency domain analysis time-frequency domain filtering Time-frequency domain spread spectrum time-frequency duality Time-frequency-energy time-frequency entropy time-frequency feature time-frequency fusion time frequency hop signal time-frequency image processing time-frequency interferometer