概述了管道内涂层在国内外的应用现状,详细介绍了内涂层的诸多优点和不同条件下管道内涂敷工艺的技术要点.The application status quo of internal coating gas transmission pipeline at home and abroad is described....
年轻职工对不喜欢的工作更易擅自离职。Young workers are more willing to desert jobs they don't like.共有73家工会隶属于英国职工大会。There are 73 unions affiliated to the Trades Union Congress.我们有多少名全职工？How many full-time staff have we got?...
采用矩形侧浇口、齿轮齿条脱螺纹机构.Rectangle - shape side gate and the gear - rack taking off thread mechanism were used.介绍了注塑模中一种象“香蕉”形状的曲线型潜伏式浇口的结构形式.The structure of a banana - shaped submarine gate in injection mold is introduced.浇口厚...