基性—中性次火山岩系
basic intermediate subvolcanic rock series
生理中性肥料
physiologically neutral fertilizer
physiological neutral fertilizer
新生儿短暂性中性白细胞减少病
Transient neonatal neutropenia
安全管理理念
safety management idea
Concept of safety management
管理理念和策略
theory and strategy of maagement