词汇	acid snow
释义	acid snow短语¹⁴⁴⁹⁷²⁺²酸雪
随便看	optical substrate optical subsystem optical subsytem optical subtracter optical subtraction optical sun optical superheterodynereceiver optical superheterodyne receiver optical superheterodyning optical superlattice optical superposing optical superposition optical superposition device optical-superposition device optical superposition principle optical super-precision surface optical supervisory channel Optical Support Measures optical surface optical, surface optical surface curvature optical surface inspection gauge Optical Surface Reflector optical surface wave optical surveillance device