服务三农
Serving agriculture
Service forfarmers
Service for Sannong
serve the three important in agriculture developme
agriculture and rural areas
科级三级质量控制
three-class nursing quality control of department
三级三角测量
third-order triangulation
三级三网双模组网模型
network model of three-level three-network dual-mode
三年级数学
3(superscript rd) Grade mathematics
院级三级质量控制
three-class nursing quality control of hospital
半年升级制
Semi-annual promotion plan
经济服务年限
life in economical service
磷资源服务年限
serve life of phosphate rock resources