Spin conservation
[化] 自旋守恒
🧩 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;
🗣️ 情景例句
which is going out with a camera and a roll of film
那就是带着照相机和一卷底片出去久
If he had only had enough money,he would have bought that house.
如果他仅仅有了足够的钱，他就会买那房子。
Are you crazy?
你疯了吗？