maintenance fee赡养费; 生活费
maintenancen.维修;维护;保持;生活费用;抚养费
maintenance mechanism保持机制
maintenance marketing维持性行销
maintenance preventer安全设施
maintenance diagnosis维修诊断
Maintenance Parts Kit保养零件箱
maintenance of program程序维护
maintenance of denture义齿的维护
maintenance investment维护投资
Maintenances treatment维持治疗
maintenance prevention安全设施, 安全措施