请翻译：我们同时还注意到该集装箱回风温度从2月22日0221时开始工作后从236摄氏度开始缓慢降低直到24日0000时降低到15摄氏度。这说明货物装箱前未预冷或者预冷不充分。

We also noticed that the return air temperature of the container began to work from 0221 on February 22nd, slowly decreasing from 23.6 degrees Celsius until it reached 15 degrees Celsius at 0000 on the 24th. This indicates that the goods were not pre-cooled or pre-cooled insufficiently before being loaded into the container.