In his first observations from Mount Wilson, Hubble used a telescope with a mirror one hundred fifty-two centimeters across.

VOA: special.2009.04.29

He carried a telescope with him wherever he went.

不论到哪里他总是随身带着望远镜

耶鲁公开课 - 欧洲文明课程节选

That year, an observatory official,V.M.Slipher, offered a young man a job working with the new telescope.

VOA: special.2010.07.11

Soon after, Hubble began working with a larger and more powerful telescope at Mount Wilson.

VOA: special.2009.04.29