We do that by using gravitational wave astronomy and measurements of the cosmic microwave background.

我们利用引力波天文学和宇宙微波背景测量来做到这一点。

The researchers will further focus on nanohertz gravitational waves and open up a new scientific direction of nanohertz gravitational wave astronomy, and continue to maintain the country's leading position in low-frequency radio astronomy in the world, said Chang.

研究人员将进一步聚焦纳赫兹引力波， 开辟纳赫兹引力波天文学新的科学方向，继续保持我国在低频射电天文学领域的国际领先地位。