苏联原子能科学家最近又获得了一项重大的科学成就,他们创制的一种目前世界上最大的5,000瓩快中子反应堆已经投入生产。这种反应堆对发展国民经济具有极重大价值。快中子反应堆利用在自然界中大量存在的铀238和钍作燃料。它不象其它类型的原子能反应堆那样,需要用在自然界中存量不多的铀235作燃料。因此,它大大地开拓了生产原子能的燃料基地,为利用原子能来生产大量廉价的电力铺平了道路。同时,快中子 The Soviet atomic energy scientists have recently obtained a major scientific achievement. One of the largest 5,000-tonne fast neutron reactors in the world that they have created is already in production. This type of reactor is of great value to the development of the national economy. Fast reactors use uranium 238 and plutonium, which are abundant in nature, as fuel. Unlike other types of nuclear reactors, it needs to use uranium 235, which is not available in nature as fuel. Therefore, it has greatly expanded the production of fuel bases for atomic energy and paved the way for the use of atomic energy to produce large quantities of cheap electricity. At the same time, fast neutron