东海关
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晚清东海关初步研究(1861&1911年)
Primary Research on Chefoo Customs ( 1861-1911 );
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这是康熙皇帝第二次东巡山海关时写下的诗句。
This is the second time the East Emperor Kangxi , when the customs officials who patrol the poem written .
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秦皇岛海岸东自山海关西至洋河口。
The studied area includes the coastal belt from shanhaiguan in the east to the mouth of the Yanghe River in the west .