单词	rod-holding
释义	同 rod-holding--magnet
随便看	optical viewing system optical visibility optical visual binary optical voltmeter optical wand optical wavegudie optical waveguide optical waveguide analysis optical waveguide arrays optical waveguide circuit optical waveguide communication optical waveguide components optical waveguide coupler optical waveguide couplers optical waveguide detector optical waveguide device optical waveguide fibre optical waveguide filters optical waveguide gratings optical waveguides optical waveguides and couplers optical waveguides theory optical waveguide tap optical wavelength optical wavelength conversion