Stepped is a weak form; swam and swum are strong.
Stepped 是按规则变
式，swam 和 swum 是不按规则变式。
Stepped is a weak form; swam and swum are strong.
Stepped 是按规则变式，swam 和 swum 是不按规则变式。
The results show that the unstart boundary of supersonic inlets is mainly concerned with Mach number of freestream without considering the variation of angle of attack.
在不考虑攻角变条件下，进气道不起
边界主要与来流马赫数有关。
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