实际上与此同时，在索隆的数字天空测量的分离观测部分里，这种紧凑但是明亮的物体已经被发现，并被认知为类星体。
Practically side-by-side in time, discovered in separate observations made as part of the Sloan Digital Sky Survey, are compact but bright objects known as quasars.
不仅仅是清晰的问题，重要的是它使你可以从画面中得到足够的信息，从而产生对比；你可以将前景的重要物体从背景中分离出来。
To be not only sharp, but to reveal enough information there so that you can have contrast; to be able to distinguish backgrounds from foregrounds from objects was crucial.
换句话说，物体是以不连续的单位呈现出来-也就是分离的显示-所提供的单位最小尺寸是一米。
In other words, objects can be depicted as discrete units — that is, shown separately — provided that they are at least one meter apart.
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