E.P. (D.G.) is a special period, and as a phenomenon, it could be used as a starting point and a focus for an instructive approach in a way of micro-study to G.E.P both lengthwise and breadthwise.

• 广东外销画式微期是一个特殊时期,以式微现象为切入点,力求从微观着眼对广东外销画作纵向与横向相结合的深入探讨是一项有益的尝试。