单词	射频源
释义	射频源radio-frequency source
随便看	center/centre of mass，principle of motion of center/centre of percussion center/centre of twist center/centre point center chisel center circle center circle of gear pins center circle of pin holes center circle pitch of gear pins center city center clipping center (closed) shedding center column center column format center-- condensation center conductor center conductor rail center contact cap center control center-- control center-coupled loop center coupler center crank center crank arm center crank engine