COMDXn.电子计算机交易会COMabbr.计算机输出缩微胶片(=computer-output microfilm)abbr.组件对象模型(=Component Object Model)communicating vessels连通器commutative semigroup交换半群commissure of eyelids睑连合commority transaction商品交易com-mercial packing商业包装commutative rejection可换关系commutating potential换向电势commutator controller整流子控制器communicable diseases传染性疾病commerical accounting商业会计; 经济核算制