单词	photodiode
释义	photodiode /ˌfəʊtəʊˈdʌɪəʊd / noun A semiconductor diode which, when exposed to light, generates a potential difference or changes its electrical resistance.The receiver uses a photocell or photodiode to detect the light.... Semiconductor photodiodes offer high-sensitivity and low-noise operation, enabling them to detect very low light levels; attenuating filters must be used for high powers. The sensor consists of a silicon photodiode, with a pre-amp that gives enough signal for the voice channel of a small radio transmitter.
随便看	peak load pricing peak nucleus peak oil peak programme meter peak program meter peak purchase Peakrel Peakril Peakrill peak satellite peak shaving peak tie peak-to-mean peak-to-peak peak voltmeter peakward peak white peaky peaky blinder peal pea lamp pea leaf weevil Peale, Charles Willson Peale, Norman Vincent pea-like

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。