That star would have been very carefully centered on crosshair in the eyepiece .
那颗星在准星目镜中会被非常小心地集中。
Its pivoting arm allowed the eyepiece to be turned 360 degrees , completely away from the staging area if necessary .
它的镜臂可以使目镜呈360度旋转，甚至可以完全远离载物台，如果有此必要的话。
The user looks into the eyepiece and uses the buttons on the phone to move two lines until they appear as one .
使用者通过目镜观察，并使用手机上的按键移动屏幕上的两条直线，直到它们重叠到一起。
A person downloads software to a phone and attaches a plastic eyepiece over the screen .
人们可以下载一个软件到手机上，并在手机屏幕上附加一个塑料目镜。
When viewing extended objects , the apparent brightness seen in the eyepiece is a function only of aperture and magnification , it is not related to focal ratio .
