Spin-allowed transition
[化] 自旋容许跃迁
🧩 词语组成解析
spin
[spɪn]
vi. 纺纱;吐（丝），作（茧），结网;快速旋转;眩晕;
vt. 纺（线）;吐丝，将…抽成丝;讲述，尤指通过想象地;使延长，使延伸;
n. 旋转的行为;快速的旋运动;眩晕;疾驰;
allowed
[ə'laʊd]
adj. [计]容许的;
v. 允许( allow的过去式和过去分词 );承认;酌增;接受;
🗣️ 情景例句
What's wrong with him?
他怎么啦？
Strike while the iron is hot.
见机行事。称热打铁。
When work continued, one man lit a cigarette as he was working, but, finding it had a strange taste, he put it out.
随后他们继续干活，一个工人在干活时点燃了一支香烟。可是他觉得有一股怪味，他就把烟灭了。