短語詞組短語light spectrum transmittance 光透射系數light strength transmittance 光強透射率light transmittance meter 透光度計light transmittance pattern 光透射圖像light transmittance performance 透光性能Visible Light Transmittance 可見光透過率white light transmittance 白光透過率light transmittance decreased 透光率下降light transmittance method 透光法 返回 light transmittance