自然质量等指数
grade index of natural quality
natural quality
耕地自然质量
Natural quality of farmland
Olsen婚姻质量自评量表
Olsen marriage quality scale
产量自然递减
natural production decline
甘肃省科学院地质自然灾害防治研究所
geological hazards fesearch institute
Gansu Academy of Sciences
geological hazards research institute
高质量自支撑金刚石膜
high quality freestanding diamond films
空气质量自动监测
Air quality automatic monitoring
空气质量自动监测系统
Air quality automation monitoring system
质量自动控制
quality automatic control
automatic quality control
质量自检体系
quality selfcontrol system