excidevt.切去(割掉)EXCn.开挖(激励器；排气关闭)excitatory neuron兴奋性神经元Excision of bursa粘液囊切除术excimer radiation准分子辐射Excision of joint关节切除术Excedrin Migraine是一种抗偏头痛药(含对乙酰氨基酚, 阿司匹林, 咖啡因)excavating plough挖掘犁,起苗犁Excision of keloid瘢痕疙瘩切除术excitating voltage激磁电压excitatory process兴奋过程excision of tumour瘤摘除术