The paper also introduces the intelligent system for the Beijing Zoo Station.
并介绍北京动物园枢纽站智能系统工程。
The accident occurred at 9:36 am on an OTIS escalator at Beijing Zoo Station Exit a on line 4, Yang Ling, from the line's operator, Beijing MTR Corporation, said at a news conference.
北京地铁公司的运营员杨凌在新闻发布会上说，事故发生在早上9点36分的地铁4号线动物园站a口。
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