单词	principal manifold
释义	principal manifold 主流形
随便看	standard precautions standard precipitation coefficient Standard precipitation index standard precision standard preemphasis standard prefabricated splint standard preferred stock warrant agreement standard prelude standard premium standard preparation standard preparation hours standard preparations Standard preparations standard prescription standard presentation standard pressure standard-pressure standard pressure altitude standard pressure angle standard-pressure angle standard pressure gauge standard pressure lapse rate standard pressure level standard pressure microphone standard pressure parts