commyn.共产党员；共产主义者COMabbr.计算机输出缩微胶片(=computer-output microfilm)abbr.组件对象模型(=Component Object Model)commerical affairs商事commissural region连合区commutating period整淋期commmercial agency商业代理Communities ethics群体伦理commutation matrix可换矩阵commissural flange联接边comvection cooling对流冷却commutated network整流网络Commelina maculatan.地地藕