| 1. | Uranium fission may be accomplished by either fast or slow neutrons .
铀的裂变可用快中子或慢中子来完成。
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| 2. | None of the xenon isotopes we measured were the direct result of uranium fission
我们所测量到的氙同位素，根本都不是直接由铀的核分裂而来。
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| 3. | The author and two colleagues recently used measurements of xenon gas ( a product of uranium fission ) to deduce that one of these ancient reactors must have operated with a duty cycle of about half an hour on and at least two and a half hours off
作者与两位同事最近透过氙气（铀的核分裂产物）的测量推测，这些远古反应器其中之一必定曾经以运作半小时、关闭两小时半的周期进行核反应。
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| 4. | The simulation can be divided into three processes sequentially : calculating the induced fission neutron rate of uranium and space distribution by mam - li neutron source , computing the total uranium fission neutron count rate and time distributions of 42 3he tubes , and calculating the neutron coincidence counting rate
第一步，以ain ? li源为中子源，计算铀的诱发裂变中子产生二率及空间分布；第二步，以铀的诱发裂变中子为中子源，计算化根’ ne管的总中子计数率及时间分布；第三步，计算中子符合计数率。
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