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- Sum of direct solar radiation and diffuse sky radiation received by unit horizontal surface. 在平面上单位面积所受的太阳直接辐射和天空漫射辐射的总和。
- diffuse sky radiation 天空扩散辐射
- The sky radiation luminance adjacent to horizon is higher. 由于大气厚度变大，近地平的天空辐射亮度较大。
- Andromeda is frequently referred to as M31 since it is the 31st object on Messier's list of diffuse sky objects. 仙女座经常被称为M31，自从它被梅西耶列为第31个弥漫天空物体。
- The luminance of clear sky radiation is higher at shortwave band, while the spectrum for small sun angle shifts to longer waveband. 晴朗无云天空辐射的光谱分布偏蓝，天空亮度主要集中在短波段部分；太阳角小的天空光谱亮度出现“红移”现象；
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- The clear water mirrored the blue sky. 清澈的水中映出蔚蓝的天空。
- The huge trees were profiled against the night sky. 在夜空的映衬下显出大树的轮廓。
- The sky is bespangled with stars. 天空中点缀着亮晶晶的星星。
- Lightning zigzagged across the sky. 闪电曲折地在天空划过。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- A blackbird nosed up into the sky, singing. 一只山雀唱着歌向空中飞去。
- Fashion trends diffuse themselves rapidly around the globe. 时装新潮很快就在全世界流行起来。
- Searching lights traversed the sky. 探照灯扫过天空。
- Radiation reached unheard-of levels. 辐射作用已达到前所未有的程度。
- The sun glare out of the blue sky. 太阳从蓝天中发出耀眼的光。
- The blizzard blotted out the sky and the land. 暴风雪铺天盖地而来。
- The sea seemed to melt into the sky at the horizon. 在水平线处，海洋似渐渐没入天际。
- He lay on his back and looked up at the sky. 他仰卧著观看天空。
- He saw the tower in relief against the sky. 他看到那塔耸立在空中，轮廓十分鲜明。
