单词	wavelength
释义	wavelengthwave‧length /ˈweɪvleŋθ/ ●○○ noun [countable] Examples EXAMPLES FROM THE CORPUS A powerful UV/Vis monochromator based detector allows wavelength selection by the turn of a dial and allows very low detection limits. Because the sandwich is only a few angstroms thick it transmits visible light - but it reflects longer wavelength heat radiation. Here, the wavelength is about 5 x 107m. The longer wavelengths associated with heat were radiating through the thick plywood board that covered the one window in his darkroom! The radiation, which comes From the arc in the mercury vapour, is mainly ultraviolet with a wavelength of 253-7 nanometres. Two objects may reflect the same wavelengths into our eyes yet be seen as having different colours. You guys ... I guess you must have a wavelength going. Thesaurus Longman Language Activatorwhen someone is different from other people► be different to think or behave in a way that is unusual: · It's a small community and anyone who shows any signs of being different just isn't made to feel welcome.· For teenagers, it's important to speak and dress like their friends. They really don't want to be different. ► not belong/not fit in someone who does not belong or does not fit in is so different that people do not like them, do not help them to become one of the group etc: · From the moment she first joined the company, Sally just didn't belong.· Until we learnt the language, we felt that we didn't fit in. But after that the people seemed to accept us. ► be on a different wavelength if two people are on a different wavelength , they have very different ideas and attitudes from each other, with the result that they do not understand each other: · My dad doesn't understand me. He's on a completely different wavelength.· We'd been married for twenty years, but we just weren't on the same wavelength anymore. ► stick/stand out like a sore thumb to be very different from the people around you especially in the way you dress or look, so that people notice you and look at you: · You can't come to the restaurant dressed in jeans. You'd stick out like a sore thumb. ► be out of step/sync to be different from the other people in a group because you behave in a different way and have different ideas: · In my school, anyone who was out of sync was ignored or ridiculed.be out of step/sync with: · The Prime Minister has been criticized for being out of step with the British people. to have the same beliefs, ideas, or opinions as someone else► like-minded having the same attitudes and beliefs and enjoying the same things as someone else: · Being with like-minded people makes my job much more enjoyable.· She convinced a group of like-minded friends to join her trekking in the Himalayas. ► be on the same wavelength to have the same opinions, attitudes, and feelings as someone else, so that you understand each other very well: · My mother and I just aren't on the same wavelength -- she just can't understand why I don't want to get married. ► speak the same language to have the same opinions as someone else and agree about most things, so that you can exchange ideas easily and easily understand: · Politically they are our enemies, but when it comes to trade I think we speak the same language.· When your sales, marketing, and production people are all speaking the same language, it pays real dividends. ► be in tune with to have the same ideas and attitudes as a group, society, country etc and be easily accepted by it: · I'm not sure you're quite in tune with the philosophy of the organization.· Sartre's novels and plays were in tune with the revolutionary spirit of post-war France. WORD SETS► Broadcasting aerial, nounairtime, nounAM, nounantenna, nounatmospherics, nounaudio, adjectiveband, nounBBC, the, beacon, nounbeam, verbBeeb, the, bleep, verbboom, nounboom box, nounBritish Broadcasting Corporation, nounbroadband, nounbroadcast, nounbroadcast, verbcable television, CB, nounCCTV, nounCeefax, nounchannel, nounclosed circuit television, nouncommunications satellite, nouncontrast, noundial, nounDJ, nounexposure, nounflash, verbFM, nounfrequency, nounham, nounHz, interference, nounjam, verbkHz, kilohertz, nounlinkup, nounlive, adjectivelocal radio, nounlong wave, nounloudspeaker, nounLW, mast, nounmedium wave, nounmegahertz, nounMHz, modulate, verbmonitor, nounmono, nounmono, adjectiveNBC, nounnetwork, nounnetwork, verbon-air, adjectiveover, prepositionpresenter, nounprogramming, nounquadraphonic, adjectiveradio, nounradio, verbreceive, verbreceiver, nounreception, nounrepeat, verbrepeat, nounrerun, nounrerun, verbroger, interjectionsatellite, nounsatellite dish, nounsatellite television, nounsaturation, nounscrambler, nounseries, nounset, nounshipping forecast, nounship-to-shore, adjectiveshort wave, nounsignal, nounsignature tune, nounsimulcast, verbSOS, nounsound, nounsound bite, nounsound check, nounstatic, nountelecast, nounTeletext, nountelevise, verbtelevision, nountelevision licence, nountelly, nountime signal, nountrack, verbtransistor, nountransistor radio, nountransmission, nountransmit, verbtransmitter, nountune, verbtuner, nountweeter, nountwo-way, adjectiveUHF, noununscramble, verbveejay, nounvideo, nounvideo, adjectivevideo jockey, nounvolume, nounwaveband, nounwavelength, nounwhite noise, nounwireless, noun Collocations COLLOCATIONS FROM THE CORPUSADJECTIVE► different · The sounds they produce utilize different timbres and wavelengths to imitate cries and evoke natural entities and phenomena.· Huffington and Shearer are on different political wavelengths.· The same object may reflect different wavelengths at different times yet be seen as having the same colour.· White light consists of light waves of all different wavelengths, or colors.· In the interferometer no dispersing element is used, and no separation of different wavelengths is necessary.· Each object shown in these pictures has been scanned at two or three different wavelengths. ► long · Radio waves are electromagnetic waves with a very long wavelength, measurable in metres.· The longer wavelengths associated with heat were radiating through the thick plywood board that covered the one window in his darkroom!· Unfortunately it is more difficult to make light sources and light receptors that work at this longer wavelength.· For example red light has a longer wavelength than green, and green than blue.· Red has the longest wavelength of visible light, and violet the shortest.· However, the performance of monocrystalline cells drops off with the longer wavelengths of light in this spectrum.· Because the sandwich is only a few angstroms thick it transmits visible light - but it reflects longer wavelength heat radiation.· It occurs when dust particles high in the atmosphere filter out most of the longer wavelengths of red light. ► short · The cavity magnetron was simple, rugged and cheap, and produced short wavelength radio waves - microwaves.· These X rays and gamma rays are like waves of light, but with a much shorter wavelength.· Left A fifth-order residual gravity map has been enhanced by the removal of the regional field to accentuate short wavelength anomalies. 1the size of a radio wave used to broadcast a radio signal2 technical the distance between two points on energy waves such as sound or light3be on the same/a different wavelength informal to have the same or different opinions and feelings as someone else:  Dad is just on a different wavelength from me.
随便看	cooped up cooper Cooper, Alice cooperate cooperation cooperative cooperatively Cooper, Gary Cooper, Henry Cooper, James Fenimore Cooperstown Cooper, Tommy coopt coordinate coordinating conjunction coordination coordinator Coors coot cop Copacabana cope Copenhagen Copenhagen, the Battle of Copernican system

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