单词	photoelectron
释义	photoelectron /ˈfəʊtəʊɪˌlɛktrɒn / noun An electron emitted from an atom by interaction with a photon, especially an electron emitted from a solid surface by the action of light: [as modifier]: photoelectron spectroscopy... Above the photoelectric threshold, photoelectrons are emitted in proportion to the intensity of incident light. The other perplexing fact was that the photoelectrons seemed to be emitted instantaneously when the light was turned on. If they receive a second exposure with a low intensity light, developer anions adsorbed to the surface sensitivity centers effectively repel the photoelectrons so that surface latent image specks cannot form. Derivatives photoelectronic adjective ... PFCs are given off primarily during the dry etching and chemical vapor deposition processes in the production of semiconductors and photoelectronic devices. Wu said that because of the park's sound environment for high-tech firms in the photoelectronic industry, firms from related industries have also been encouraged to choose central Taiwan as their base. A photoelectronic detector measures the light passing through the aperture.
随便看	posologist posology posolutely poss posse subbie sub-bituminous Sub-Boreal subbotnik sub-bottom subbrachial subbrachian sub-branch sub-branched sub-breed sub-brigadier Subbuteo subby subcalibre subcanopy subcapsular sub-Carboniferous subcardinal subcarrier subcartilagineous

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