1. Its are ordinal and ordinal for: Bipod - two crus - two ham - coxal - the small of the back - celiac breast - cervical - the head. 其顺序依次为:两脚-两小腿-两大腿-臀部-腰背部-腹胸部-颈部-头部。
2. Its are ordinal and ordinal for: Bipod - two crus - two ham - coxal - the small of the back - celiac breast - cervical - the head. 其顺序依次为:两脚-两小腿-两大腿-臀部-腰背部-腹胸部-颈部-头部。
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. Phenomenon of Moire fringe is explain by ordinal number equation and diffraction theory respectively. 对莫尔条纹现象,分别用序数方程原理与衍射干涉原理解释粗光栅、细光栅的莫尔条纹现象。