variable BHF'生产性的人variableadj.可变的；易变的n.变量；易变的东西variable-capacitance diode[电] 可变电容二极管variable wire wound resistor可变线绕电阻器variable-delivery mud pump变量泥浆泵variable dimension algorithm变维算法Variable Power Speed Control功率调速variable reluctance detector可变磁阻检波器variable step size searching自动变步长搜索variable threshold logic VTL(可)变阈值逻辑电路variable-structure control变结构控制variable frequency governing变频调速