问题
名词解释
定熵滞止参数
答案
参考答案:
将具有一定速度的流体在定熵条件下扩压,使其流速降低为零,这时气体的参数称为定熵滞止参数。
定熵滞止参数
参考答案:
将具有一定速度的流体在定熵条件下扩压,使其流速降低为零,这时气体的参数称为定熵滞止参数。
完形填空。 | ||||
Dear Bob, My name is Wang Jie. I want __1__ your pen pal. I live in Beijing, __2__ . I think Canada is a very beautiful __3__.I'm 14 years old and my birthday is __4__ September. I can __5__ a little English. I have __6__ brother or sister. I like to stay __7__ my classmates. We often play __8__ after school, such as football, basketball, tennis and running. My favorite __9__ at school is math. I don't like English. It's too _10__ . Let's be good pen pals. Yours , Wang Jie | ||||
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