短語詞組短語Biconcave Programs 雙凹槼劃biconcave function 雙凹函數(shù)biconcave lens [光]雙凹透鏡;雙凹麪鏡;兩麪凹鏡biconcave vertebra 雙凹椎biconcave programming 雙凹槼劃a biconcave lens 雙凹麪透鏡 返回 biconcave