词汇	topical theme
释义	topical theme 话题主位
随便看	variable pay variable payload ship variable payment variable-pay program variable peecision rough set variable penetrance variable percent variable per cent variable period variable-period sampling scheme variable persistence variable persistence storage cathode ray variablepersistence storage monitor variable-persistence storage monitor variable-perspective camera variable pesticide application variable phase variable phase output variable phase plate variable phase shifter variable-phase signal variable physical property parameter variable PI Variable PID controller variable PI parameter