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汉语拼音：dēng sī

灯泡或电子管内的金属丝，多为细钨丝，通电时能发光、发热、放射电子或产生射线。

1. 电灯泡或电子管内的金属丝。通电即发光、发热或产生射线。

• A fine wire is heated electrically to incandescence in an electric lamp.

  灯丝在电灯中电加时成白炽状态。

• 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.

• 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.

• 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.

• 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.

• The filament gives off light when heated by an electric current.

  当灯丝藉助于电流而加热时,就会发出亮光.

• The carbon nanotubes were synthesized by the heat filament chemical vapor deposition.

  研究所用的碳纳米管是用热灯丝化学气相沉积法合成的.

• U 4 triode connected: Medium MU small mass filamentary heating structure.

  三极管接法): 中Mu小型灯丝结构.

• An electric light passes electricity through material called a filament or wire.

  电灯中用来传送电流的材料叫灯丝或金属丝.

• Carbon nanotubes in experiments were synthesized by hot filament chemical vapor deposition.

  所用的碳纳米管是用热灯丝化学气相沉积法合成的.

• The light an electric lamp comes from an incandescent filament.

  “电灯”光亮来自白热的灯丝.

• If the filament transformer has a center tap, don't use it.

  如果变压器灯丝绕组有抽头, 请不要使用它.

• Then current through C 1, RT forms the return circuit preheating filament.

  于是,电流通过C1 、 Rt形成回路预热灯丝.

• A fine wire heated electrically to incandescence in an electric lamp.

  电灯光亮来自白热的灯丝.

• 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.