XAC西飞集团XA=Auxiliary Amplifier 辅助放大器Xavier Eluere埃吕埃尔Xavier Lesage勒萨热xanthurenicase黄尿烯酸酶xanthoma cells[医] 黄瘤细胞xanthoscillide黄海葱苷xanthate ratio黄化率xanthe oxidase黄嘌呤氧化酶xanthate group黄酸盐基xantogranuloman.黄色肉芽肿xanthosideriten.黄针铁矿