“呼吸性粉尘”的概念、定义、翻译、参考文献-科学参考

单词	呼吸性粉尘
释义	呼吸性粉尘 Encyclopedia 工学矿尘释 respirable dust呼吸性粉尘粒径小于5微米的、能进入人体肺泡区的颗粒物。是引起尘肺的病因。工学呼吸性粉尘释 respirable dust呼吸性粉尘粒径在5微米以下、空气动力学直径在10微米以下，能进入人的细支气管到达肺泡的粉尘微粒。
随便看	positive definite closed form positive definite form positive definite function positive definite functional positive definite Hermitian matrix positive definite inner product axiom positive definite kernel positive definite matrix positive definiteness positive definite operator positive definite potential positive definite product positive definite quadratic form positive definite scalar product positive definite sequence positive definite solution positive definite space positive definite tensor positive definte rational fanction positive deviation positive diffeomorphism positive diffeomorphisms positive differential positive direction positive displacement compressor

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。