| 1. | The lack of air in the bulb prevents the filament from burning up .
灯泡内缺乏空气就使灯丝不致烧掉。 |
| 2. | The liberation of electrons from a hot wire is called thermionic emission .
电子从热灯丝逸出，叫做热电子发射。 |
| 3. | The source of electrons in an electron microscope is a heated filament .
电子显微镜中的电子源，是一加热的灯丝。 |
| 4. | The effect is caused by the escape of electrons from the hot filament .
这个效应是由于电子从热灯丝逸出而引起的。 |
| 5. | An inert gas such as argon is introduced to reduce evaporation of the filament .
将诸如氩那样的惰性气体充入灯泡中，以减少灯丝的蒸发。 |
| 6. | Each electrode is a filament for providing electrons to maintain an electric discharge through an inert gas .
每一电极是一灯丝，它发射电子，以通过惰性气体来维持放电。 |
| 7. | The cathode at the left is raised to a high temperature by the heater, and electrons evaporate from its surface .
左边的阴极被灯丝加热到高温，同时电子从阴极表面蒸发出来。 |
| 8. | The electricity makes the filament burn and produce light
电使灯丝发热产生光。 |
| 9. | 6b4g : low mu oxide coated filamentary heating structure
低mu氧化物覆膜灯丝结构。 |
| 10. | High mu thoriated tungsten filamentary heating structure
高mu敷钍灯丝结构。 |
