variable PI雯参数PIvariableadj.可变的；易变的n.变量；易变的东西variable outlet可调出口variable buzzer可调蜂鸣器variable damper可变阻尼器variable gene V基因variable thrust可调推力variable pocket可变口袋variable format可变格式,变化格式variable levies变动的征税,可变税额variable series变量数列variable danger火险可变因素<所有每天变化的火险因素