回飞棒星云的膨胀创造了一种宇宙冰箱，使气体维持其异常的寒冷。
The Boomerang Nebula's expansion creates a kind of cosmic refrigerator, allowing the gases to maintain their unusual cool.
然而回飞棒星云的扩张却创建了一种特定类型的宇宙的冷冻器，它能容许气体维持它们原来的异常冷却温度。
But the Boomerang Nebula's expansion creates a kind of cosmic refrigerator, allowing the gases to maintain their unusual cool.
冰寒的回飞棒星云会发光，是因为它尘埃反射了来自中心星的星光，天文学家认为它是正在演化到行星状星云阶段的恒星或恒星系统。
Shining with light from the central star reflected by dust, the frigid Boomerang Nebula is believed to be a star or stellar system evolving toward the planetary nebula phase.
目前我们已经知道的宇宙中最冷的地方是所谓回飞棒星云(Boomerang Nebula)，它距离处于半人马座中的地球约有5000光年。
The coldest known place in the universe is the Boomerang Nebula, 5, 000 light years away from us in the constellation Centaurus.
目前我们已经知道的宇宙中最冷的地方是所谓回飞棒星云(Boomerang Nebula)，它距离处于半人马座中的地球约有5000光年。
The coldest known place in the universe is the Boomerang Nebula, 5, 000 light years away from us in the constellation Centaurus.
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