词汇	伸广
释义	伸广 broaden
随便看	optical wave method optical wave mixing optical waves optical wave scattering optical wave synthesis optical wave transmission optical WDM network optical wdm submarine cable network opticalwedge optical wedge optical wedge micrometer optical-wheel abrasive optical white optical whitener optical whiteness optical whitening optical whitening agent optical whites optical width optical window optical window interferogram Optical windows optical wireless optical wireless commuhication optical wireless communication