| 释义 |
led
ledpast tense of lead: He led them along the path.
Not to be confused with:lead – to conduct or escort: lead them out; a heavy bluish-gray metalLED L0098100 (ĕl′ē-dē′, lĕd)n. A semiconductor diode that converts applied voltage to light and is used in lamps and digital displays.
[l(ight-)e(mitting) d(iode).]
led L0083900 (lĕd)v.Past tense and past participle of lead1.led (lɛd) vb the past tense and past participle of lead1
LED abbreviation for (Electronics) light-emitting diode led (lɛd)
v. pt. and pp. of lead 1 . LED
pl. LEDs, LED's. light-emitting diode: a semiconductor diode that emits light when conducting current, used in electronic equipment, esp. for displaying readings on digital watches, calculators, etc. LED (ĕl′ē-dē′, lĕd) Short for light-emitting diode. An electronic semiconductor device that emits light when an electric current passes through it. LEDs are used for indicator lights, such as those on the front of a disk drive.Thesaurus| Noun | 1. | LED - diode such that light emitted at a p-n junction is proportional to the bias current; color depends on the material usedlight-emitting diodealphanumeric display, digital display - a display that gives the information in the form of characters (numbers or letters)crystal rectifier, junction rectifier, semiconductor diode, diode - a semiconductor that consists of a p-n junctionOLED, organic light-emitting diode - a self-luminous diode (it glows when an electrical field is applied to the electrodes) that does not require backlighting or diffusers |
Translationslead1 (liːd) – past tense, past participle led (led) – verb1. to guide or direct or cause to go in a certain direction. Follow my car and I'll lead you to the motorway; She took the child by the hand and led him across the road; He was leading the horse into the stable; The sound of hammering led us to the garage; You led us to believe that we would be paid! 引導 引导2. to go or carry to a particular place or along a particular course. A small path leads through the woods. 通向 通向3. (with to) to cause or bring about a certain situation or state of affairs. The heavy rain led to serious floods. 導致 导致4. to be first (in). An official car led the procession; He is still leading in the competition. 領先 领先5. to live (a certain kind of life). She leads a pleasant existence on a Greek island. 過(某種生活) 使...过（某种生活） noun1. the front place or position. He has taken over the lead in the race. 首位 首位，领先 2. the state of being first. We have a lead over the rest of the world in this kind of research. 領先 领先3. the act of leading. We all followed his lead. 領導 领导4. the amount by which one is ahead of others. He has a lead of twenty metres (over the man in second place). 領先的程度 领先的程度5. a leather strap or chain for leading a dog etc. All dogs must be kept on a lead. (繫在寵物頸部的)皮帶 （牵狗等用的）皮带 6. a piece of information which will help to solve a mystery etc. The police have several leads concerning the identity of the thief. 線索 线索7. a leading part in a play etc. Who plays the lead in that film? 主角 主角ˈleader noun1. a person who is in front or goes first. The fourth runner is several miles behind the leaders. 領先者 领先者2. a person who is the head of, organizes or is in charge (of something). The leader of the expedition is a scientist. 領導 领导3. an article in a newspaper etc written to express the opinions of the editor. 社論 社论ˈleadership noun1. the state of being a leader. He took over the leadership of the Labour party two years later. 領導地位 领导2. the quality of being able to lead others; leadership ability. The post requires a person who combines leadership and energy; She's got leadership potential; Does he have any leadership qualities?. 領導能力 领导能力lead on1. to deceive with false expectations. 誘騙 引诱2. to go first; to show the way. Lead on! 率領，帶路 率领lead up the garden path to deceive. 矇騙 蒙骗lead up to to progress towards; to contribute to. to lead up to a climax; the events leading up to the First World War. 把...逐步導向 把...一直带领到，导致 lead the way to go first (especially to show the way). She led the way upstairs. 帶路 带路led
See:- lead (one) (around) by the nose
- lead (one) astray
- lead (one) to (do something)
- lead (one) to believe
- lead (one) to the altar
- lead (one) up the aisle
- lead (someone or something) against (someone or something else)
- lead a cat and dog life
- lead a dog's life
- lead a double life
- lead a life of (something)
- lead back
- lead by
- lead down
- lead down to (something or some place)
- lead forth
- lead from the front
- lead nowhere
- lead off
- lead out of (something or some place)
- lead the field
- lead the life of Reilly
- lead the life of Riley
- lead the line
- lead the pack
- lead the way
- lead up
- lead up to
- lead with
- like a lamb being led to (the) slaughter
- like a pig being led to (the) slaughter
- one thing leads to another
LED
LED, light-emitting diode. See diodediode
, two-terminal electronic device that permits current flow predominantly in only one direction. Most diodes are semiconductor devices; diode electron tubes are now used only for a few specialized applications.
..... Click the link for more information. .Led’ a river in Arkhangel’sk Oblast, RSFSR, a left tributary of the Vaga (Severnaia Dvina basin). Length, 184 km; basin area, 2,690 sq km. It originates from a lake, Letozero, and is very meandering. The Led’ is fed primarily by snow. The mean flow rate 42 km from the mouth is 16.7 cu m per sec. The Led’ freezes in late October or in November, thawing in late April or May. It is used for floating timber. Fish are abundant. LED (electronics) light-emitting diode light-emitting diodeA solid-state device (diode) that emits light of a single primary color, but in combination with other diodes can produce colors of any hue for use in signage. These devices, each of which is about one centimeter (half-inch), have a remarkably long life. Also called an LED.LED (electronics)Light-Emitting Diode.LED(Light Emitting Diode) A display and lighting technology used in almost every electrical and electronic product on the market, from a tiny on/off light to digital readouts, flashlights, traffic lights and perimeter lighting. LEDs are also used as the light source in multimode fibers, optical mice and laser-class printers. See LED lightbulb.
LEDs vs. LCDs
In the early 1970s, red LEDs were used in the first digital watches, but were superseded by lower-power LCDs within a few years. LEDs still use more power than LCDs, but less power than incandescent bulbs. They also last for decades and are virtually indestructible.
LEDs and LCDs coexist on countless devices where the LEDs provide the status lights, and the LCDs display data. In addition, white or red, green and blue LEDs are used as the backlight source on many LCD TV sets. See LCD, LED TV and flat panel TV.
Several Colors
LEDs are semiconductor diodes that typically emit a single wavelength of light when charged with electricity. Originally red, today, several colors can be generated based on the material used for the tips of the probes. Aluminum indium gallium phosphide (AlInGaP) is used for red and yellow. Indium gallium nitride (InGaN) is used for green and blue, and with the addition of phosphor, for white light as well. See digital billboard, OLED, IRED, LED printer, fiber optics glossary and Nixie tube.
 | | An LED Unit |
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| The LED is the semiconductor die, which sits in a reflective cup that is also a heat sink. Voltage is applied to the LED, and electrons and holes in the two semiconductor layers are attracted to each other at the junction. When they combine, photons are created. |
 | | LEDs and LCDs Are Used Together |
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| Small alphanumeric readouts can be LED or LCD, but the indicator lights on countless products are LEDs. |
 | | First LED Watch |
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| The Synchronar 2100 was the first LED watch and the first solar powered watch. It preceded Hamilton's famous Pulsar LED watch in 1970. (Image courtesy of the private collection of Peter Wenzig.) |
 | | LEDs Offer Flexibility |
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| A flick of a switch changes the ambience in this Los Angeles bedroom (top), while the Westin Hotel staircase in Shanghai (bottom) cycles colors or becomes a musical light show. (Images courtesy of Color Kinetics, Inc., Bedroom design and photo by Steven Cordrey. Staircase by Light Directions Hong Kong, photo by Friendly Light.) |
 | | LEDs Offer Flexibility |
|---|
| A flick of a switch changes the ambience in this Los Angeles bedroom (top), while the Westin Hotel staircase in Shanghai (bottom) cycles colors or becomes a musical light show. (Images courtesy of Color Kinetics, Inc., Bedroom design and photo by Steven Cordrey. Staircase by Light Directions Hong Kong, photo by Friendly Light.) |
FinancialSeeleadLED
| Acronym | Definition |
|---|
| LED➣Light Emitting Diode | | LED➣Local Economic Development | | LED➣Layout of (Software) Engineering Diagrams | | LED➣Light Emitting Device | | LED➣Local Employment Dynamics | | LED➣Ledig (German: unmarried) | | LED➣Law Enforcement Division | | LED➣Local Employment Development | | LED➣Low-Energy Diet (health) | | LED➣Licht Emittierende Dioden (German: Light Emitting Diode) | | LED➣Liposome-Encapsulated Doxorubicin | | LED➣Love Equals Death (band) | | LED➣Leadership Education Development (various locations) | | LED➣Last Edition | | LED➣Lean Encoder Decoder | | LED➣Language Editor | | LED➣Lawyers Edition | | LED➣Local Economy Development | | LED➣Linear Equity Derivatives | | LED➣St Petersburg, Russia - Pulkovo (Airport Code) | | LED➣Licensed Educational Diagnostician | | LED➣Ley de Extinción de Dominio (Spanish: Forfeiture Law; Guatemala) | | LED➣Legal Education Department | | LED➣Loss-Event Database | | LED➣Law Enforcement Desk | | LED➣Lupus Erythematosus Disseminatus | | LED➣Library Education Division | | LED➣Loop Encryption Device | | LED➣Logical Error Detection | | LED➣Linear Energy Density | | LED➣Lethality Enhancing Device | | LED➣Logic-Evolved Decision Model |
LED
Synonyms for LEDnoun diode such that light emitted at a p-n junction is proportional to the bias currentSynonymsRelated Words- alphanumeric display
- digital display
- crystal rectifier
- junction rectifier
- semiconductor diode
- diode
- OLED
- organic light-emitting diode
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