They laboriously combed through the observations, checking them for anything that looked like a nuke.

他们费力地梳理了观测结果，检查它们是否有任何类似于核弹的东西。

She also devised a method by which astronauts, with one star observation checked against a star chart, could tell where they were.

她还设计了一种方法，宇航员可以根据星图对一颗恒星进行观测，从而确定自己的位置。