乘法

The teacher hammered away at the multiplication tables.

老师一再朗读乘法表。

The teacher hammers away at the multiplication tables.

老师反复地念诵乘法表。

We had multiplication tables drilled into us at school.

以前们上学得反复背诵乘法表。

The teacher quizzed the pupils on the multiplication tables.

老师测试了学生们对乘法表的掌握。

Multiplication and addition are associative operations.

乘法和加法合性运算。

A decade or so ago, I designed a simple circuit that included a quad optoisolator arranged in a full-wave analog-multiplier bridge (Figure 1).

约十年前，了一个简单电路，包括按全波模拟乘法器电桥排列的四个光耦（图1）。

This paper discusses the structure, calculation of multiplication and power, eigenvalue and eigenvector, and diagonalizable problems of matrix of rank equal to 1.

摘要对秩等于1的矩阵的构、乘法与乘幂运算、特征值与特征向量和对角化问题进行了讨论。