variable vane可调导向叶片variableadj.可变的；易变的n.变量；易变的东西variable selecting method变量选择方法variable length character可变长度字符variable-speed scanning变速扫描,变速扫描法variable alpha transistor可变a晶体管, 可变α晶体管variable property element变性质元素variable speed reversible可变速度可逆物variable stiffness method变刚度法variable smoothing length变光滑长度Variable feedback control变量反馈控制Variable current quantity变流量