“classification of air cleanliness”的概念、定义、翻译、参考文献-科学参考

单词	classification of air cleanliness
释义	classification of air cleanliness Encyclopedia 工学食品工厂设计释 classification of air cleanliness空气洁净度等级单位体积洁净空间的空气中，按关注粒径的粒子最大浓度限值进行划分的等级标准。
随便看	Polish-Russian War Polish space Polish sports Polish-Swedish War Polish-Turkish War Polish Uprising of 1830 Polish Uprising of 1863 polisteskinin polite language politeness politeness theory political absorption political advertising political agenda political and legal ideas political and legal system political anthropology political appointment official political arithmetic political attitudes political behaviour political beliefs political blog political body political cartoons

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。