During crystallisation, an oversaturated solution is subjected to wet milling by means of a wet milling device;as a result, a primary grain suspension is obtained.

• 该方法包括将含所述药用有效成分的过饱和溶液在结晶的同时用湿法磨碎设备进行湿法磨碎，以获得初级粒子悬浮液。