1. The index system consists advanced index, economical index and green index, which consist of A class index sign and second class index sign. 评价指标体系由技术先进性、经济性、绿色性三方面指标组成，分一级指标和二级指标。
2. The index system set up four indexes, it is that the first class index includes the input index, the process index, the output index and effect index. 该指标体系设置了四个维度的指标，即一级指标分为投入维度、过程维度、产出维度和效果维度。
3. Based on the number set, a new commutative semi-group is established in the integer number and extended in number fields of rational number, real number and the complex number. 在数集的基础上，在整数域上建立了一个新的交换半群，并在有理数域、实数域和复数域上进行了推广；
4. Based on the number set, a new commutative semi-group is established in the integer number and extended in number fields of rational number, real number and the complex number. 在数集的基础上，在整数域上建立了一个新的交换半群，并在有理数域、实数域和复数域上进行了推广；
5. Result: Neither the cloacal bursa index nor the thymus index was affected (P>0. 05), but the spleen index and the female reproductive organ index were increased (P<0. 05). 结果：法氏囊指数和胸腺指数升高不显著（P>0。05），脾脏和雌性生殖器官指数升高显著（P<0。05）。
