1) the relations between roots and coefficients
根与系数关系
1.
By using the relations between roots and coefficients of quadratic equation,the physical parameters of the system are obtained.
在双质量扭振系统中引入特征值反问题 ,利用一元二次方程根与系数关系 ,求得系统的物理参数 ,方法简便 ,可用于同类问题 。
2) relation between the roots and coefficient of an equation
根与系数的关系
3) root and coefficient
根与系数
1.
The discriminant and the relationship between root and coefficient are important in finding solutions to the quadratic equation ax~2+bx+c=0(a≠0).
初中数学中的一元二次方程ax~2+bx+c=0(a≠0)的根的判断式及根与系数的关系是一元二次方程中的重要知识。
4) the relations of root and coefficient of eqations with1variabe and2degrees
一元二次方程的根与系数的关系
1.
In which the number of hyperboloid s principle direction is judged by using the relations of root and coefficient of eqations with1variabe and2degrees.
为了使学生不产生误解,本文就曲面的主方向个数的判定提出一个简易方法即运用一元二次方程的根与系数的关系这一代数理论来对曲面的主方向个数进行判定。
5) root and rhizosphere
根系与根际
1.
Study on microbe group of Stylosanthes guianensis root and rhizosphere in Mao Village of Guilin
柱花草根系与根际微生物类群的研究
6) root and shoot relation
根、冠关系
补充资料：经济关系(见生产关系)
经济关系(见生产关系)
economical relation
1 ingji gU口nxj经济关系(eeonomieal relation)系。见生产关
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条