Ordinal number twenty
序数───Ordinal number;词───Words
During the single dot cross operation, import the athuard ordinal number arrow, simplify the cross operation of the natural sequence.───在单点交叉过程中引入了逆序数向量进行交叉，简化了自然数序列的交叉过程。
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.
The ordinal number matching the number 80 in a series.───第八十在一列中相应于80的序数.
The ordinal number matching the number 50 in a series.───第五十在一系列中排于第50的序数.
The numerals in Zunyi dialect can be divided into cardinal number, round number and ordinal number.───遵义方言的数词可分为基数词 、 概数词和序数词.
conditionally generalize principle of transfinite recursion from ordinal number class to class with well-founded relation.───借助一阶逻辑演算有条件地把超限递归原理从序数类推广到具有良基关系的类上。
An ordinal number indicating an initial point or origin.───零:序数中表示最初的点或原点.