The star chart will be centred on the Moon, with the Earth's shadow automatically switched on.
这个星图将以月球为中心,自动显示并切换地球的影子。
When the map is locked onto an object, the map will automatically be centred on the location of the selected object whenever the time or date changes.
当星图锁定一个天体时,星图会自动以该星体为中心并不以时间和日期个改变而转移。
But the debate centred on how premature a baby can be and have a reasonable prospect of surviving.
但争论的焦点在于如何从时间上界定早产儿,以及早产儿降生后成活的可能性。
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