短語詞組短語boundary bias representation 疆界偏差表達Function - Boundary Representation 函數(shù)邊界表示方法boundary -based representation 邊界為基的表示法object boundary representation 物體邊界描述boundary representation br 邊界表示法solid boundary representation 實體邊界表示implicit boundary representation 隱含邊界描述boundary representation schema 邊界表示法approximate boundary representation 產(chǎn)生近似的邊界表不 返回 boundary representation