Because of the inherent flexibility of nuclear fuel cycle in CANDU reactor, the transition from the nature uranium to the recycled uranium(RU) can be completed without any changes of the structure of reactor core and operation mode.

• 由于CANDU堆对核燃料循环的固有灵活性 ,堆芯结构及运行方式不需作重大改变 ,即可完成从天然铀到RU的过渡。