1) exponent of factor
正负相间
1.
The exponent of factor 7 in power sum alternate d with positive and negative;
关于正负相间方幂和中因子7的指数
2.
The exponent of factor 3 in power sum alternated with positive and negative;
一类正负相间方幂和中因子3的指数(英文)
3.
It is investigated that exponent of factor p in power sum alternateu with positive and negative.
研究一类正负相间方幂和中素数因子p的指数问题,将方幂和中因子指数转化为由n,r,x和d组成代数式中因子个数计算。
2) alternated with positive and negative
正负相间
1.
Let Uen and Ven be generalized Lucas number,The power Sum:sum from k=1 to n(U~R_(ek),sum from k=1 to n(U~_(-ek)) and the calculation formula of power sum alternated with positive and negative:sum from k=1 to n((-1)~kU~r_(ek)),sum from k=1 to n((-1)~kU~r_(-ek)) are achieved by generating function.
设U_(en)和V_(en)是广Lucas数,用发生函数的方法得到方幂和sum from k=1 to n(U～R_(ek)和sum from k=1 to n(U～_(-ek)),以及正负相间方幂和sum from k=1 to n((-1)～kU～r_(ek))和sum from k=1 to n((-1)～kU～r_(-ek))的计算公式。
2.
By using the generating function, have the power sum of luces numbers with subscript negative integer number, and the power sum of luces numbers alternated with positive and negative.
用发生函数的方法,得到了下足标为负整数的Lucas数方幂和及正负相间Lucas数方幂和的计算公式。
3.
Let Un and Vn be Lucas number,the power sum nk=1Urk and the power sum alternated with positive and negative nk=1(-1)kUrk were discussed and calculation formulas were given.
设Un,Vn是Lucas数,用发生函数的方法得到方幂和 nk=1Urk及正负相间方幂和 nk=1(-1)kUrk的计算公式,并给出一些例子。
3) positive and negative dependence
正负相关
6) Negatively(Positively)associated
负(正)相依
补充资料：德国黑白相间半身盔甲
德国黑白相间半身盔甲
古代战士为求取自身的安全，常用硬骨头、木头、兽皮、厚棉布等为材料制作成简陋的战时防御物；公元前 600 年起，人类开始懂得以小铁圈串连编织成「铁链衣」（mail shirt）保护身体 ；至公元2 世纪，由于炼铁技术进步，铁片盔甲逐渐盛行，至14 世纪达到最高峰，高阶战士的盔甲均须特别量裁制作，造型及样式甚具艺术性 ，能保留至今者均被视为艺术极品广受珍藏。本件黑白相间之半身盔甲，是16世纪流行于德国的典型样式。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。