20.27 议事机构文件方面出现差异的主要原因在于《跨界水道和国际湖泊保护和利用公约》缔约方会议和附属机构的文件以及《关于水和卫生的议定书》缔约方会议和附属机构的文件，因为会议时间表以两年为一个周期(上一次会议于 2018 年举行，下一次计划于 2020 年举行)。
20.27 The variance in parliamentary documentation is driven mainly by documentation for the Meeting of the Parties to the Convention on the Protection and Use of Transboundary Watercourses and International Lakes and subsidiary bodies and the Meeting of the Parties to the Protocol on Water and Health and subsidiary bodies, owing to the two-year cycle of the schedule of meetings (the previous meeting was held in 2018, and the next is planned for 2020).