单词	ballistic echo
释义	ballistic echo 冲击回波
随便看	oscillating spindle lapping machine oscillating sprinkler oscillating state oscillating strainer oscillating straw rake oscillating stress oscillating structure oscillating subsoiler oscillating suction box oscillating system oscillating table oscillating tail-fin oscillating tappet oscillating technology oscillating teeth oscillating thermal precipitator oscillating thermionic valve oscillating thinner oscillating tooth oscillating tooth carrier oscillating tooth drive oscillating tooth gear oscillating tooth gear pump oscillating tooth gear transmission oscillating-tooth speed reducer