Therefore, sky enthusiasts are encouraged to image the Whirlpool galaxy as often as possible to fill in time gaps left by intermittent observations made by the world's most powerful telescopes.
因此，天文爱好者们都被鼓动了起来，尽可能频繁地拍摄旋涡星系，以此填补世界上最强大的望远镜的间歇性观察当中的时间空隙。
Additional visual observations are usually in order to establish the advent of unsteady flow, intermittent stall, and full stall.
通常采用另外一些目视法来确定非常定流断续失速和全失速的出现。
Additional visual observations are usually in order to establish the advent of unsteady flow, intermittent stall, and full stall.
通常采用另外一些目视法来确定非常定流断续失速和全失速的出现。
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