词汇	retrace period
释义	retrace period 回描周期
随便看	direction finding set Direction Finding Set direction-finding set direction-finding signal null direction finding site direction-finding site direction finding slave station direction finding station direction-finding station Direction Finding Subsystem direction finding system direction-finding system direction finding technology direction finding with amplitude comparison direction finding with interferemeter direction finging direction-fixed axis direction flag direction float direction flow direction fluctuation direction focusing direction for consumption direction for crowd direction for development