<prompt> Translate the following text to EnglishMikutano hiyo ilidumu kwa siku moja hadi mbili kwa wanachama wote, na baadhi ya mikutano ilijumuisha vikao tofauti kwa vikundi vidogo ili kujadili masuala maalum ya kiufundi au ya wanachama.  <response>: Typically, the meetings lasted 12 day to 2 days for the entire membership, and some meetings included separate sessions for smaller groups to discuss specific technical or member issues. 