No dark space at floor 楼层无黑房
The light source USES modular design, and has the characteristics of good lightness and no dark space. The series can provide normal indoor lighting service.
光源模块化均匀分布，光亮度好，无暗区，能提供完整的日常室内照明。
That's no sunspot. On the upper right of the above image of the Sun, the dark patches are actually the International Space Station (ISS) and the Space Shuttle Atlantis on mission STS-132.
此时太阳表面并没有黑子，图像的右上部的黑斑其实是国际空间站（ISS）和正在执行STS-132任务的航天飞机亚特兰蒂斯号。
Astronauts in a spaceship, traveling far above the atmosphere of the earth, are in totally dark space because there are no dust particles or droplets of moisture to reflect the rays of the sun.
宇宙飞船中的宇航员，在距地球大气层很远的上方飞行，完全处于黑暗的宇宙中，因为没有尘埃微粒或小水汽滴去反射太阳的光线。
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