英语词汇“electronic central office”的读音、翻译、释义、用法及例句-语文网

词汇	electronic central office
释义	electronic central office 电子电话中心局（=ECO）利用电子设备完成电话转接的地方。
随便看	spectrogram spectrograph spectrography spectroheliogram spectroheliograph spectrology spectrometer spectromicroscope spectrophotometer spectroscope spectroscopic spectroscopy spectrum spectrum spectrum level specular specular reflection speculate speculation speculation speculation arbitrage speculative Speculative Efficiency Hypothesis speculative import speculative investment

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