相关单词近义词 ring 戒指反义词open chain, 开环形山链, 开链...临近词closed low, closed, closed loop quality system model, closed-loop frequency response, Closed Tracheal Suction Catheter, closed user group call indicator, closed-packed hexagonal system, closed circuit fire alarm system, closed butt gas pressure welding, Closed Ecological Support System, closed user group interlock code, closed-loop transmit diversity 返回 closed chain