FITLINK is one of main programs of NDFMPS that is core nuclear design and fuel management program system, and is a treatment program of cross section parameter of fuel assembly.

FITLINK是NDFMPS堆芯核设计和燃料管理程序系统的主要程序之一，是一个组件截面参数处理程序。

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A pulsed extraction column with an annular cross section 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 cross section.

中子和物质的反应速度与中子的密度、中子的速度、原子核密度以及特有的反应截面有关。

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