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big-bang nucleosynthesis
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big-bang nucleosynthesis
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宇宙的热历史
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big-bang nucleosynthesis
大爆炸核合成
大爆炸后宇宙膨胀温度降到约10亿度时由质子和中子经聚合反应生成氘、氦、锂等轻元素核的过程。
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A Letter to My Younger Sister Written at Dalei'an
aleuritic acid
aleurone
aleurone grain
aleurone layer
Aleut
aleutian disease of mink
Aleutian Islands
Aleutians
Aleutian Trench
a-level surface
Alex Agbaglo Acolatse
Alexander
Alexander Abramovich Kabakov
Alexander Aleksandrovich Bogdanov
Alexander Alekseevich Zharov
Alexander Alexandrovich Fadeyev
Alexander Alfredovich Bek
Alexander Alyabyev
Alexander Andreevich Prokhanov
Alexander Andreevich Shklyarevsky
Alexander Andreyevich Prokofyev
Alexander Archipelago
Alexander Brome
Alexander Buzo
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