common oil公用油系统commonadj.常见的；共同的；普通的；平常的；平凡的；粗俗的n.公地；平民；普通；公园common people's consciousnesscommon battery switch-board共电式交换机common-collector connection共集电极连接Commonality construction land公共建筑用地Common erythrocyte suspension普通红细胞悬液common construction and share共建共享common sense of the situation共同情景意识common communications support通用通信支援程序common proper-motion binary共自行双星common mode input capacitance共模输入电容