词汇	root cutting
释义	root cutting 根插
随便看	operational airspeed Operational Air Traffic Operational Air Training School operational algorithm operational alternative hypothesis operational altitude operational amplification circuit operational-amplified circuit operational and service-type institution operational announcing system operational amplifier operational amplifier block operational amplifier differintiator operational-amplifier differintiator operational amplifieropamp operational amplifierop amp operational amplifiers operational amplifier saving power operational amplifiers circuits operational amplifler Operational amplify operational analysis Operational Analysis Code Package operational analysis technique operational and equipment need