“severe air pollution”的概念、定义、翻译、参考文献-科学参考

单词	severe air pollution
释义	severe air pollution Encyclopedia 管理学环境风险应急管理释 severe air pollution重污染天气中国环境空气质量指数（AQI）大于或等于201的污染天气现象。又称大气重污染。
随便看	wavelet kernel matching pursuit learning machine wavelet matrix wavelet neural network model wavelet packet wavelets wavelet theory wavelet thresholding wavelet transform wavelet transformation wavelet transform spectrophotometry wavelike wave-like behaviour wave load wave loop wave loop, antinode wave maker wave mapping wave mapping equation wave-mean flow interaction wave-mechanical perturbation theory wave mechanics wave meter wavemeter wave mode wave momentum density

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。