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- Astronomers could gain only a biased idea of the universe when they were limited to the narrow wavelength band of visible rays. 由于只能在可见光的狭窄波段内观测，天文学家关于宇宙的概念显然只能是片面的。
- Materials, such as glass, which allow the visible rays and the short infrared rays to pass through readily, often reflect or absorb longer rays completely. 象玻璃那样的材料，可见光和短波红外线虽然很容易通过，但波长较长的射线却常常被它反射或吸收。
- the transmittance of visible ray 可见光透过率
- These rays would not be visible to our eyes. 人眼是看不见这些射线的。
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- The hills were barely visible through the mist. 小山隐没在薄雾中难以看清。
- The big rafter is visible in this room. 这间屋子粗大的椽子可以看得见。
- The sea is visible from my hotel room window. 从我旅馆房间的窗户可以望到大海。
- The tower was visible from afar. 从远处就能望到那座塔。
- Radioactive ray is material thing. 放射线是实际的物质。
- This star is not visible to the naked eye. 这颗星肉眼看不见。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- The emission of visible light by a hot object. 白热光物体遇热发出可见光
- The gun can fire invisible rays. 这枪能发出看不见的射线。
- My eyes were blinded by the direct rays of light. 在光线的直射下，我看不清楚东西。
- All eyes directed their rays on the hero. 所有人的目光都汇集到那位英雄身上。
- Various parts of his anatomy were clearly visible. 他身体的各个部分都看得很清楚。
- The researches are concerned with alpha rays. 这些研究是关于阿尔法射线的。
- A visible shudder swept over her. 她全身明显一震。
- Mr. Brown is a highly visible politician. 布朗先生是一位经常公开露面的政客。
