FITLINK is one of main programs of NDFMPS that is core nuclear design and fuel management program system, and is a treatment program of crosssection parameter of fuel assembly.
A pulsed extraction column with an annular crosssection can successfully provide large-cross-section and can be made critically safe for nuclear operation.
具有环状截面的脉冲萃取柱可以有效地提供更大的柱截面积，并且保证核燃料的临界安全。
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The reaction rate of neutrons with matter depends on the density of neutrons, their velocity, the nuclear density and the particular interaction crosssection.