Title: Wu qing de hai yang
Description: Ben shu jie kai le guan yu hai yang fang mian de zhi shi. Shu zhong shou you ba pian wen zhang, Ji<xia qian zhi lü>, <wu qing de hai yang>, <shen hai zhong de bao zang>, <hang hai li cheng> deng, Qi jian pei you man hua zuo pin.
Subjects: Ocean bottom, Ocean