论文部分内容阅读
4月21日正午,当参加“全国工程建设系统第八届焊工技术比赛”的代表们走出闭幕式会场时,记者们围住了中国工程建设焊接协会名誉理事长姚
At noon on April 21, when delegates attending the “Eighth Welder Technology Competition of the National Engineering Construction System” walked out of the closing ceremony, the reporters surrounded the honorary chairman of China Construction Welding Society, Yao