Astronomers studying t Chamaeleontis (t Cha), a faint star 350 light-years from Earth in the southern constellation of Chamaeleon, detected a large gap in a disc of material around the star.

研究“t蜒”(T Cha)这颗在南天的蜒座中距地球350光年的黯淡恒星的天文学家们观测到在恒星周围的盘状物质中出现了一个大裂口。

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When the dough just holds together, wrap it in clingfilm and pat it into a large disc shape and refrigerate to rest for at least 30 minutes.

面团成型后用保鲜膜包起来，拍成大光碟的形状，然后放进冰箱保存至少半个小时。

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Roll out the dough into a large pizza-sized disc.

把面团摊进一个跟披萨尺寸相当的大盘子里。

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Its face is a large disc, painted dark blue, with what looks like a red-hot explosive force emanating from the centre.

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Some of Richard Wilson's previous works include a large disc sawn out of the facade of a building for the Liverpool Year of Culture and a section of ship moored near the Millennium Dome in 2000, cut vertically to show its cross-section.

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