Excessive Noise Ratio过多的信噪比 En Routeadv. 在途中 Equivalent Noise Resistance等效噪声电阻 Enrichment and Reprocessing (technology)浓缩和再加工(技术) Electronic News Room电子新闻室 Expected Net Receivables预计净应收帐款 Egyptian National Railways埃及国家铁路 Engineering News Record工程新闻记录 Enrolled (bill, resolution, etc. passed by both houses of Congress and re-typed)报名(比尔,分辨率等经过国会参众两院和re-typed) Enhanced Nutrient Removal增强的脱氮除磷 Environment & Natural Resource环境和自然资源