词汇	异物感
释义	异物感 foreign body sensation
随便看	optical, surface optical surface curvature optical surface inspection gauge Optical Surface Reflector optical surface wave optical surveillance device optical surveillance platform Optical Surveillance System optical survey reconnaissance Optical swiitching opticalswitch optical switch optic al switch optical switch array optical switches optical switching optical switching characteristic optical switching fabric optical switching network optical switching system optical switch matrices optical switch matrix optical symmetry Optical synchronization optical synchronous digital network