combination jet客货两用机combinationn.结合；结合到一起的事物或人；密码combination hedging组合套期保值combination spanner两用扳手combination filling[医] 复合填料combination denture[医] 联合托牙combination defence混合防守combination of edge融合边缘combination therapy联合治疗combinational logic组合逻辑Combinations number组合数combination ability组合能力