The group meeting will be hold on Wednesday from 8:30 to 11:00 at room C420. The contents are as follows：1）Ran yahong will introduce the treatment menthod of residual oil；2) Zhang zhujun will show the problem d for her setup；3) Pu yingzhou will summarize his work; 4) Liu rui will introduce the understanding of DDLG systerm5）Wang kechao will introduce the update information of TCBC website. Please pass the message to each other.