21. Also notes with satisfaction that the African Leadership Conference on Space Science and Technology for Sustainable Development, the first of which was hosted by the Government of Nigeria in collaboration with the Governments of Algeria and South Africa from 23 to 25 November 2005, will be held on a biennial basis;
21. 又满意地注意到尼日利亚政府与阿尔及利亚政府和南非政府协作，在2005年11月23日至25日首次主办的非洲领导人空间科学和技术促进可持续发展会议将每两年举行一次；