单词	东北角
释义	东北角 dōngběijiǎothe northeast corner
随便看	optical phonon optical-phonon scattering optical photon optical physics optical pickup optical picture center optical planar arrays optical planar waveguide optical planar waveguide and component optical planar waveguide circuit optical planar waveguide component optical planar waveguide coupler optical planer waveguide component optical plastic optical plastics optical plates optical plumb optical plumbing optical plummet optical-plummet optical polarimetric sensing optical polarization optical polarization independence quantum well optical polarization in homogeneous media optical polarization mode dispersion