311 line used the recording form for Ai Xie Lin, which had no place for carbinol measurement and the jockey mistakely put the carbinol measurement in the column for nitrogon.

• 311线原始记录格式借用爱协林记录本，无甲醇压力记录栏，操作者将甲醇压力错误记录在氮气记录栏；