查询词典 sum

decomposition group：分解群

decomposition formula 分解公式 | decomposition group 分解群 | decomposition in a direct sum 直和分解

decomposition in a direct sum：直和分解

decomposition group 分解群 | decomposition in a direct sum 直和分解 | decomposition into linear factors 线性因子分解

decomposition into linear factors：线性因子分解

decomposition in a direct sum 直和分解 | decomposition into linear factors 线性因子分解 | decomposition into partial fractions 部分分数分解

dedekind set：绰金集

dedekind ring 绰金环 | dedekind set 绰金集 | dedekind sum 绰金和

dedekind sum：绰金和

dedekind set 绰金集 | dedekind sum 绰金和 | deduce 演绎

deduce：推理

对于全文的理解,读者主要用总结(sum-up)、概括(outline)、归纳(induce)、推理(deduce)等思路. 四级阅读测试一般包括4篇文章的阅读,每篇后有5道选择题. 这些的类型多种多样,但归纳起来大致可分为二大类,

diagonal sequence：对角序列

diagonal process 对角线法 | diagonal sequence 对角序列 | diagonal sum 矩阵的迹

diagonal sum rule：对角和规则

diagonal matrix 对角矩阵 | diagonal sum rule 对角和规则 | diagram of equilibrium 平衡图

diagonal sum：对角和

diagonal principle 对角线原理 | diagonal sum 对角和 | diagonal term 对角项

diagonalizable matrix：可对角化矩阵

diagonal sum rule 对角求和规则 | diagonalizable matrix 可对角化矩阵 | diagonalization 对角线化

the bird of wonder：凤凰;长生鸟

the bird of peace鸽子 | the bird of prey 猛禽 | the bird of wonder凤凰;长生鸟

flange rail：平底轨条

"凸缘皮带轮","flange pulley" | "平底轨条","flange rail" | "凸缘肋","flange rib"