The gravitationalradiation emitted by the solar system is far too small to measure.
引力辐射的太阳系绝非太小措施。
2
It will be multi-messenger astronomy because it's electromagnetic combined with gravitationalradiation.
这将会是多信使天文学，因为他将电磁辐射和引力辐射结合了起来。
3
In chapter two, it explains gravitationalradiation, especially the linear solution in gravitational field. That means it gives explanation to weak field.