A.粘性耗散B.質(zhì)量耗散C.熱傳導(dǎo)D.聲波的傳遞
A.Ma數(shù)不小于0.3B.Ma數(shù)小于0.3C.密度可變D.機(jī)械能守恒
A.不可壓B.連續(xù)C.可逆D.靜止