您要查找的是不是：
- secondary electron multiplication 次级电子倍增
- Dynamic Crossed Field Electron Multiplication 动态交叉场电子倍增
- static crossed-field electron multiplication 静态交叉场电子倍增
- silicon electron multiplication camera t 硅电子倍增摄像管
- image intensifier with transmitted secondary electron multiplication 透射式二次电子倍增象增强器
- image imtensifier weth transmitted secondary electron multiplication 透射式二次电子倍增象增强器
- My son began to study multiplication when he was six. 我儿子六岁的时候开始学习乘法。
- The multiplication of students has made our school too small. 学生的增加使学校显得拥挤。
- The transmitter was pulsed by an electron tube. 电子管使发射器产生脉冲波。
- Our teacher used to drum our multiplication table into us. 我们老师过去老是让我们反复背诵乘法表。
- Our teacher used to drum our multiplication tables into us. 我们老师过去老是让我们反覆背诵乘法表。
- The multiplication of numbers has made our club building too small. 会员的增加使得我们的俱乐部拥挤不堪。
- An electron tube having a cathode and an anode. 电子二极管有一个阳极和一个阴极的电子管
- The multiplication of numbers have make our club building too small. 会员的增加使得我们的俱乐部拥挤不堪。
- The number of electron pairs an atom can share with other atoms. 共用电子对数，共价一个原子与其他原子共用的电子的对数
- Several methods were used for multiplication. 作乘法有几种方法。
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- The teacher quizzed the pupils on the multiplication tables. 老师测试了学生们对乘法表的掌握。
- electronic multiple automatic exchange 电子复式自动交换机
- Here is part of a multiplication grid. 这儿是乘法格子的一部分。
