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简述了７－１２ＭｅＶ能区由于有几种低能中子成分的存在给截面测量与评价带来的困难，及低能中子的扣除方法。并给出了此能区几个反应道的测量结果，以图的形式与国际同行数据作了比较。又以￣（５８）Ｎｉ（ｎ，ｐ）￣（５８）Ｃｏ反应为例，说明低能中子对Ｔ（ｄ，ｎ）￣４Ｈｅ中子源的影响，还给出了￣（５８）Ｎｉ（ｎ，ｐ）反应的评价曲线。
The difficulties in cross-section measurement and evaluation due to the existence of several low-energy neutron components and the deduction of low-energy neutrons in the 7-12 MeV energy region are briefly described. The measurement results of several reactors in this energy zone are given and compared with the international counterparts in the form of graphs. The effect of low energy neutrons on T (d, n) ~4He neutron sources is also illustrated by the reaction of Ni (n, p) ~ (58) n, p) reaction evaluation curve.