The entire observable universe was a millionth of a billionth of a centimeter across at that time. Everything was compressed into an incredibly hot, dense region.
在那时整个可观测到的宇宙也不过只有千万亿分之一毫米大。一切都被压缩在一个温度极高,密度极大的区域里。
The Celosia cristata was irradiated wigh 60Co-γ ray and its germination rate and seedling growth were observed.
用不同剂量60Co蛳γ射线辐射鸡冠花种子,观测其对种子发芽率和幼苗生长的影响。
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