Variable lags变时滞variableadj.可变的；易变的n.变量；易变的东西variable blank-holder force变压边力variable frequency technology变频技术variable-spacing encryption可变间隔密码Variable speed feedwater pump变速给水泵variable frequency resistance耐变频variable magnification device可变倍率机构variable reluctive transducer变磁阻式传感器variable point representation可变基数点表示法variable - frequency timing变频调速variable density track record可变密度声道记录