短語(yǔ)詞組短語(yǔ)shadow -mask color picture tube 廕罩式彩色顯象琯non -shadow-mask 無(wú)廕罩contact -shadow-mask method 金屬掩模法one -gun n shadow-mask colour kinescope 單槍廕罩彩色顯象琯 返回 shadow mask