是的，沉默为笑点增强效果，因为它加深了紧张感。
Yes, silence adds power to the punchline because it heightens the tension.
以对木浆的增强效果为标准，从中选出了几种增强效果较好的样品，为壳聚糖的进一步改性奠定了基础。
Then a few sample of chitosan is selected because of their obvious strengthening effect on wood pulp. This study is base of more research of chitosan used as paper strengthening agent.
双排气膜孔出流对换热的增强效果随孔排距的增加先增大后减小，在孔排距为10D时最大。
The heat transfer enhancement increases and then decreases with the increase of the distance between rows, and is highest when the distance between rows is 10D.
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