液-液-液三相萃取
There-liquid-phase extraction
液-液-液三相体系
liquid-liquid-liquid system
液-液-液三相微萃取
liquid-liquid-liquid microextraction
液-液-液三相液相微萃取
liquid-liquid-liquid phase microextraction(LLLME
液-液-液微萃取
liquid-liquid-liquid microextraction
北京的无形之手
the invisible hand of Beijing