參見:

英語

首字母缩略词

ppb

  1. 百万分之(parts per million之缩写)
  2. 页每分钟(pages per minutes之缩写)

近义词

  • (百万分之):µU, microuno

相关词汇

  • (百万分之):ppb, ppt, ppq

另见

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