commsn.通信COMabbr.计算机输出缩微胶片(=computer-output microfilm)abbr.组件对象模型(=Component Object Model)comstruction message施工信息commodities exchange商品交换commutative lie ring交换李环commutative property交换性commutator bar pitch换向片节距comfidence intervals置信区间commissural lip pits口角性唇凹commutative matrices可换矩阵commingling analysis混合(分布)分析commemorative plaque纪念牌