This article introduces and exports of leatheret industry and the situation of the related industries.阐述了我国人造革、合成革行业发展现状及发展特点,提出了中国人造革、合成革行业的工作重点及发展方向....
The underground pipeline colligate alure in city Utility tunnel.城市地下管线综合管廊俗称共同沟.Now we introduce briefly correlated study future, pointing out the colligate therapy trend of SVCS.现简要介绍近期国内外相关研究治疗, 指出本病综合化治疗的趋势.To judge i...