词汇	switch operating gear
释义	switch operating gear 道岔操纵装置
随便看	direct amplifier system direct analog direct analog computer direct analog synthesis direct analogy direct analogy computer direct analysis direct analysis method direct analytic continuation direct anaphoric reference direct ancestor direct and circumstantial Direct and continuous determination direct and developed dye DIRECT AND DIRECT FAST DYES: C.I.No direct and FM combined Direct and indirect direct and indirect bilirubin direct and indirect connexions direct and indirect energy conversion direct and indirect evidence direct and indirect process cost direct and indirect process costs direct and inverse approximation theorems direct and inverse kinematics solution