词汇	二乙酸乙烷
释义	二乙酸乙烷医ethylidene diacetate
随便看	timeframes Timefrequency analysis time frequency analysis time-frequency analysis time-frequency analysis method time-frequency analysis technique time-frequency anatysis time-frequency atom time-frequency-atom time-frequency atoms Time-frequency channel time-frequency character time frequency characteristic time-frequency characteristic time-frequency characteristics Time-frequency characteristics time-frequency code time-frequency coded multiple-access time-frequency code pulse compression time frequency coding time-frequency coding time frequency collision avoidance syste Time Frequency Collision Avoidance System time-frequency collision avoidance system Time-frequency concentration