back-check造句

• In allusion to test roadway in the zhang - luo second class highway and lin - chang freeway , through hydrologic analysis , hydraulic calculation and with the analysis of highway structure , the blue print of setting drainage system , construction technique and back - check experiment are presented
  针对张罗二级公路试验段和临常一级公路试验段，进行了水文分析和水力计算，并结合路面结构分析，提出了排水系统的布设方案、施工技术方案和试验检测方案。