Altermann.奥尔特曼alterv.改变；更改；阉割；切除卵巢alternating current transmission交流传输alternating current pretreatment交流电预处理alternator performance parameter发电机的性能参数alternating-current controller交流控制器alternating group flashing light彩色闪光灯组alternating current torque motor交流力矩电动机alternation of slops and terrace隔坡梯田alternating current series motor交廉激电动机alternating voltage compensatory交流电压补偿器alternating current electrolysis交流电解