“ppb”的概念、定义、翻译、参考文献-科学参考

单词	ppb
释义	ppb Geology and Earth Sciences Parts per billion (10⁹).
随便看	channel controller Channel Deposits channel error channel fill channel flow channel((in cell biology)) channelization channelized flow channel management channel mobility channel operator channel order channel roughness channel stopper channel switching channel time response Channel Tunnel channel wave chaos chaos theory chaotic dynamics chaotic orbit chaotic reaction chaotic terrain CHAP

科学参考收录了60776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。