一个定态表明有一个X可能值的展宽。
模型化是处理非定态操作的主要工具。
Mideling is the major tool to deal with unsteady-state operations.
在很长的一段时间内，人们对上述流态的了解仅限于定常的或时间平均的流态。
However only steady and mean flow state have been studied for a long period of time.
在很长的一段时间内，人们对上述流态的了解仅限于定常的或时间平均的流态。
However only steady and mean flow state have been studied for a long period of time.
应用推荐