基本解釋短半軸詞組短語(yǔ)短語(yǔ)angular semi -minor axis [天]角半短徑ratio of semi -minor axis length 長(zhǎng)短軸之比minor semi -axis 短半軸;[數(shù)]短軸半徑semiminor axis更多詞組專業(yè)釋義數(shù)學(xué)半短軸半副軸