session chairman meaning in English

会议主席，会议主持

From 14 to 18 in dec . of 2004 , professor wanxie zhong attended the international conference on computational methods held in singapore , and was invited to be a session chairman
2004年12 .月14日至18日，钟万勰教授赴新加坡参加世界计算方法会议，做大会报告，并担任分组会主席。
Your session chairman has the right to modify the sequence and time of the presentations as necessary please note that there will be one bell ring for 2 minutes warning , and two bell rings at the end of the allotted time for each speaker
请各论文宣读人依指定时间宣读，并请于宣读后留在原位，以确保宣读流程之顺畅进行。（为利提醒每一位宣读人之宣读时间，工作人员将于其分配时间结束前二分钟响一声铃、时间到时响二声铃）
16 nov . 2003 - 4 dec . 2003 , professor chen haoran attended the 12 international conference on composite structures ( iccs12 ) held in melbourne , australia , and presented the paper “ dynamic behavior of delaminated plates considering progressive failure process ” and was invited to be a co session chairman to chair 2 sessions
2003年11月19日- 12月4日参加了在澳大利亚墨尔本市召开的”第十二届国际复合材料结构会议” ,发表了题为”考虑破坏过程的含损伤复合材料层合板的动力性态”学术论文,并任此大会的两分会场主席。