倒镜 meaning in English
inverted position of telescope
inverted position telescope
reverse telescope
reversed position of telescope
telescope in reveresed position
telescope reverse
Examples
- We know how fast the galaxies are receding from us . so , if we run the movie of the universe backward , we can calculate how long it takes for the galaxies to get back together . from this , the age of the universe is about 15 billion years 1 . 5 x 10
利用大爆炸理论亦可以估算宇宙的年，由于我们知道星系的退行速度，只要我们来一个倒镜，计算所有星系回到原点所需的时间，便可得出宇宙的年，结果是大约有150亿年1 . 5x10