弗里德里希·凯库勒发现分子苯的结构想一个环状的客观事实，正是醒于当天的一个白日梦后知道的，在梦里他梦见一群蛇都在追逐着各自的尾巴，于是形成了好多环形。
Friedrich Kekule discovers the unique ring like structure of the molecule benzene right after he wakes up from a day-dream about snakes chasing their own tails and forming rings.
第一个婴儿为完全的环形环状胰腺。
In the first infant, there was a circumferential annular pancreas.
研究表明，单电子环形存储器单元电路利用量子点环状电路结构形式，由外接输入电压控制各岛上的电荷，能够得到存储器的“0”和“1”状态。
It is shown that the two states('0' and '1') of single-electron ring memory, which has a cyclic array of quantum dots, can be implemented by input voltage controlling the charges on the islands.
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