1.
We call -a the additive inverse of a.
我们称-a为a的加性逆元素。
2.
A set with an associative binary operation under which the set is closed, which contains an identity element and an inverse for every element in the set.
群二元结合运算为闭合的数学集合，具有单位元素。集合中每一元素都有逆元素
3.
EXISTENCE DETERMINATION AND SOLUTIONG OF THE POLYNOMIAL INVERSE IN REPEAT MODULE POLYNOMIAL RING
重模多项式环中逆元素的存在性判断及求法
4.
Estimates for the upper and Lower Bounds on the Inverse Elements of Strictly Diagonally Dominant Periodic Tridiagonal and Pentadiagonal Matrices;
严格对角占优周期三对角及五对角阵逆元素上下界的估计
5.
The Study on Nutrient Elements Ferment Activity and Anti-adverse Circumstance of Larix Principis-rupprechtii;
华北落叶松营养元素及酶活性与抗逆性研究
6.
Studies on Hardiness and Mechanism of Copper and Zinc Element to Kernel-apricot;
铜锌元素对仁用杏抗逆性及其机理的研究
7.
Study on the Nutrient Element of Copper Zinc and Ferment Activity with the Resistant Ability of Larix Principis-rupprechtii;
铜锌元素及酶活性与华北落叶松抗逆性的研究
8.
A new method of solving the polynomial inverse in repeat module polynomial ring
一种新的重模剩余类环中元素逆的求法
9.
Studies on Effects of La on the Growth of Rice Seedlings under Stress;
稀土元素镧对逆境胁迫下水稻幼苗生长的影响研究
10.
The Coexistence of Enormous Trade Deficit and Economic Growth in U. S.:the Factor of Dollars and Hidden Problems;
巨额贸易逆差与美国经济增长并存:美元因素及其隐忧
11.
Variations of Soil Mineral Elements in Reversion Process of Desertification in Arid Areas
干旱区沙漠化逆转过程土壤矿质元素的变化特征
12.
Cucumber Mineral Nutrients Absorption Characteristics in Modern Greenhouse and Effects of Different Temperature, Weak Light and CO_2 on Cucumner Plant Growth and Development;
现代温室黄瓜矿质元素吸收规律及温光逆境和CO_2对黄瓜生长发育的影响
13.
Anti-reversal Finite Element for Soft Tissue Modeling
一种抗单元逆转的软组织有限元模型
14.
Disease is a stress.
疾病是个逆境因素。
15.
proper nilpotent element
真幂零元素，根元素
16.
A trace element.
痕量元素，微量元素
17.
Of, relating to, or being an element.
元素的关于元素的，与元素有关的或作为元素的
18.
US Trade Deficit Hits Record High, Shaking the Value of US Dollar
美贸易逆差创新高美元价位震荡