variable PI雯参数PIvariableadj.可变的；易变的n.变量；易变的东西variable recoil可变后座variable memory可变存储器variable camber变弯度,变曲率,变曲面Variable choice变量选择Variable Design变量化设计variable symbol可变符号variable offset双向变偏移距variable metric可变量度variable nozzle变截面喷嘴,可调喷嘴variable layers变层数