一天的工作内容、完成情况、工作难点及解决办法.
上午去参观了工程训练中心。
--Lanvana (talk) 12:57, 11 August 2015 (CST)
下午参观了环境系的实验室。
--Lanvana (talk) 15:53, 11 August 2015 (CST)
环境系实验室参观记录
619 大气污染与控制实验室