graphite moderated reactors造句

• Uranium enrichment, nuclear reprocessing, graphite moderated reactor, light water reactor, heavy water reactor.
• Since then, the agency has been limited to monitoring North Korea's graphite moderated reactor as part of the 1994 agreed framework.
• Under the Agreed Framework, North Korea explicitly agreed to freeze plutonium programs ( specifically, its " graphite moderated reactors and related facilities " ).
• Heavy water reactors, and some graphite moderated reactors can use unenriched uranium, but light water reactors must use low enriched uranium because of light water's neutron absorption.
• According to paragraph 3, article 1 of the DPRK-USA Agreed Framework, the DPRK is to allow the IAEA to monitor the freeze on graphite moderate reactors and related facilities during the period of their freeze and renders cooperation to the Agency for that purpose.
• Two graphite moderated reactors were involved in major accidents : An untested graphite annealing process contributed to the Windscale fire ( but the graphite itself did not catch fire ), and a graphite fire during the Chernobyl disaster contributed to the spread of radioactive material ( but was not a cause of the accident itself ).