| 1. | The idea underlying the semiconductor counter is old .
半导体计数器的基本原理还是旧的。 |
| 2. | In the beginning, engineers hoped to use semiconductor lasers .
在开始时，工程师们希望能够利用半导体激光器。 |
| 3. | Semiconductors containing such impurities are called p-type semiconductors .
含有这类杂质的半导体叫做P型半导体。 |
| 4. | A further refinement in semiconductor technology is the integrated circuit .
在半导体工艺中，集成电路是一次革新。 |
| 5. | Thermistors are semiconductor devices whose resistance varies with temperature .
热敏电阻是一种半导体元件，它的电阻随温度而变化。 |
| 6. | An analogy is often used to clarify the mechanism of conduction in a semiconductor .
为了弄清半导体中的导电机制，常常采用一种比喻。 |
| 7. | These crystals are the basis of the semiconductor chips which run modern computers .
现代计算机里使用的半导体芯片都少不了这种结晶体。 |
| 8. | Semiconductor devices can perform a variety of control functions in electronic equipment .
半导体器件在电子设备中能起各式各样的控制作用。 |
| 9. | The load current is handled directly by the controller through semiconductor switching devices .
负荷电流由调节器通过半导体开关元件直接控制。 |
| 10. | Electrons from the metal will have to surmount the potential barrier to enter the semiconductor .
金属中的电子必须克服这个势垒层才能进入半导体。 |
