单词	Doppler radar
释义	Doppler radar noun : a radar system that utilizes the Doppler effect for measuring velocity Word History First Known Use 1954, in the meaning defined above
随便看	screen one's phone) calls screen out screen pass screen plate screen presence screen print screen printing screen process screen saver screen test screen time screen tree screen wiper screen-test screen-wall screenable screened screened (off) screened off screened out screened porch screener screeners screenful screenhouse

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