traffic hub短语¹³¹⁶²⁰⁺³ 基本例句 交通中心 The company adjacent to the Hongqiao traffic hub is professional factory which is engaged in production, processing and marketing of various professional AC-DC electric drive cabinet. 本公司是专业从事各类交直流电气传动系统的设计、生产、加工和销售的专业厂家。 cneemh