临时主席 meaning in English

interim chairman

The name of the president or other presiding member ; and
主席或临时主席之姓名；及
In the absence of the chairman , the committee shall elect one of its members to act as temporary chairman
如主席不能出席会议，则由另一委员担任临时主席。
The secretary of the committee shall maintain and have custody of full and correct records of all action taken by the committee
监察委员会议由该会主席主持。如主席不能出席会议，则由另一委员担任临时主席。