quadratics

基本解释

• n.[数]二次方程式论
• 名词quadratic的复数形式.

同根派生

英汉例句

• Each small quadrat must be more homogeneous than the sociation as a whole.
  每个小样方必须比整个基群丛更为统一。
• The main topics are: determinants, matrices, rank of a matrix, vector spaces, linear equations, eigenvalues and eigenvectors, quadratics.
  本课程的基本内容有行列式、矩阵、线性方程组、矩阵的特征值与特征向量。
• Finally,we measured agronomical parameters and spectrum data at every major quadrat,and established the setting database.
  在各类样地上，分别进行农学参数、环境背景参数的观测和波谱特征的测试。最后进行数据整理和背景数据库的建立。
• The root nodules maximums occur in April except for A. ordosice quadrat, and RLD of coarse roots are far little than those of fine roots.
  挖沟分层取样研究表明，与柠条相比油蒿具有较高的根冠比；
• The quadrat sampling technique is mostly used in plant ecology to study the distribution and abundance of species in plant communities.
  其内部的生物体被标记，样方抽样技术多用于植物生态学领域，用来研究某一植物群落中物种的分布及其含量的多少。