实验结果表明：下行通风角联分支风流的逆转可以归结为烟流和风流异向分层流动的量变过程和风向突变的质变过程。
Results obtained show that reversal procedure of diagonal branch contains two stages, one is stratified flow of smoke and airflow toward different directions, which is a quantitative change stage.
我向你保证：每一次故事情节的逆转、每一位角色性格的缺陷，每一个花在书店的下午，每一次关于随心堆叠书本的深夜讨论，都绝对无可置疑是值得的！
I promise you this: every plot twist and character flaw, every afternoon spent in a bookstore and late night discussion over haphazard stacks of books will absolutely and undoubtedly be worth it!
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