observational

observational的英语例句

1. We have experimental and observational evidence concerning things which happened before and after the origin of life.

   有关生命起源前后发生了什么，我们通过实验和观察得出了一些证据。

2. This is an extraordinary and provocative observational fact.

   这是一个不平常的,激动人心的观测事实.

3. The observational work is carried out on a range of telescopes.

   观测工作借助于各种望远镜。