The Group notes that, although various approaches to the nuclear fuel cycle have been extensively discussed, studied and researched in the past, several factors have contributed to the contemporary relevance of this issue to the global nuclear non-proliferation regime.
2. 集团指出，虽然以前曾广泛讨论、探讨和研究过各种核燃料循环做法，若干因素使这一问题在当今对全球核不扩散体制具有现实意义。