光线: ray的: 4次方是 The fourth power of 2 i ...差: send on an errand; dispatch光线象差: ray aberration放射光线的: beamy光线的;放射的: radial光线的发射: emission of light光线的聚集: condensation光线的漫射: diffusion of light光线的明暗: lighting回光线的: catacaustic能透光线的: radiable无光线的: rayless吸收光线的: light-absorbing光线的透明度: shine opacity不漏光线的封套: light-tight envelope光线的折射作用: interception of rays入射光线的入射角: incident angle of the entering ray象差: hromatic aberration; optical aberration; quadrantal deviation光线或辐射线的波长单位: angstrom's unit由红外线放出光线的现象: calorescence最大发射光线的垂直角: vertical angle of maximum candlepower emission光线: light; luminous beam; ray; ray of light 昏暗的光线 dusky light; 在微弱的光线下看书 read in a poor light; 请把桌子移动一下, 这样光线会好些。 please move the desk a few inches to get better light. 明月泻下柔和的光线。 the bright moon was pouring down the soft rays.; 光线成像 image formation by rays; 光线电话(学) phototelephony; 光线电话机 photophone象差, 横象差: lateral aberration到达表面和从表面射出的光线的隐藏: hiding rays to and from surfaces