单词	回声测距仪
释义	回声测距仪echometer
随便看	collinear equation correction collinear forces collinear (franklin) antenna collinear heterodyning collinearily method collinearity collinearity condition collinearity equation collinearity-influential observations collinearity method collinear libration point collinearly collinear planes collinear points collinear relationship collinear transformation collinear vectors collineation collineation axis collineation great circle collineation group collineatory transformation colline zone colling colling coil