欢乐生肖

欢乐生肖 　　WUYANGCHEN、WUWURANDENISHUIPINGHENGJIXIEDINGGUANSHIGONGJISHU

欢乐生肖 　　JINRI，BEIJINGSHIKONGQIZHONGWURANYINGJIZHIHUIBUBANGONGSHIFABUKONGQIZHONGWURANHUANGSEYUJING，YAOQIUXIANGGUANDANWEIJIAQIANGSHIGONGGONGDIYANGCHENKONGZHI。SHOUZHENGCEYINGXIANG，XUDUOYANGCHENWURANJIAODADEKAIWAGONGCHENG、TUSHIFANGGONGCHENGFENFENTINGGONGJIESHOUZHENGDUN。ERJIUZAIZHEGEBEIJINGXIA，ZUOWEISHIZHENGJICHUSHESHIJIANSHEZHONGZHONGYAOYIHUAN，YIXIEDIXIAGUANDAOGONGCHENGQUEBINGMEIYOUTINGZHIZUOYE，BUDEBUSHUO，ZHEWANQUANDEYIYUWUYANGCHEN、WUWURANDENISHUIPINGHENGJIXIEDINGGUANSHIGONGJISHU。

　　一提起霧霾、提起大氣污染，人們往往第一時間就會想到汽車尾氣、工廠排放，殊不知長久以來，建設工地的揚塵著實為削薄臭氧層做出了“不懈努力”。隨著頂管施工技術的引入，傳統的大開挖作業逐漸被拋棄，越來越多的市政工程愿意采用泥水平衡機械頂管法這種更加安全、高效、無污染的地下管道鋪設技術。