perifocus翻譯，perifocus的意思，perifocus同義詞，perifocus的反義詞，perifocus短語詞匯

詞語：perifocus

perifocus的意思

perifocus 近焦點;近主焦點;近心點;近焦點 近主焦點;advance of the perifocus 近地點焦距前進;