Programmable custom band-edge frequencies.

可编程定制带边频率。

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Blue shift appears both on the absorb edges in the absorption spectra and on the band-edge emission in the luminescence spectrum.

在紫外吸收谱中表现为吸收边明显蓝移，而在光致发光谱中，表现为带边发射的蓝移。

youdao

The testing result of photoluminescence spectra at room temperature shows that all the samples have two emission bands, that is, UV emission band near the band-edge and visible emission band.

室温下样品光致发光光谱的测量结果表明：所有的样品均有两个发射带，即近带边紫外发射和可见发射带。

youdao

It's tri-band GSM, EDGE and W-CDMA, so you can stay connected from pretty much anywhere, as quickly as possible.

ENGADGET: Nokia announces 5 new phones and more

The van, which had false registration plates and a green band around the edge, sped off along Grange Cross Lane and was found burnt-out a short while later in Carr Lane, Moreton.

BBC: Peter Singleton