在开展上海岩石地层清理工作中，对以往留存地层断代疑点的地层补做了采样、分析鉴定工作。

While checking up Shanghai litho - stratigraphic documents, additional sampling, analyzing and identifying work have been done for former doubtful points of stratum dating.

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这里分析了清代各个时期龙袍上龙纹眉眼的时代特征，以作为龙袍和龙纹断代的一个指标。

This paper analyses temporal characters of different periods of Qing Dynasty, making these characters an indicator dividing the history of dragon robes and motifs into periods.

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