ppm
音标发音
- 英式音标 ['pi:p'i:'em]
- 美式音标 ['pip'i'em]
基本解释
- abbr. 每分钟页数(=pages per minute)
- abbr. 百万分之 ... (=parts per million)
英汉例句
- The term parts per million ( ppm ) was widely used but frequently led to misinterpretation.
广泛使用百分之几 ( ppm ) 表示结果,但常常引起误解. - Note: PPM means part per million usually a measure of quality.
注: PPM是百万分之一件的缩写通常是质量的一种指标. - Objective : To study implement effect of PPM - tuberculosis control project in city.
目的: 探讨在城区实施PPM-DOTS项目的效果情况. - The term parts per million ( ppm ) was widely used but frequently led to misinterpretation.
广泛使用百分之几 ( ppm ) 表示结果,但常常引起误解. - Note: PPM means part per million usually a measure of quality.
注: PPM是百万分之一件的缩写通常是质量的一种指标.
词组短语
- Final PPM 作准备会;制作预备会;造预备会
- PPM Officer 项目采购管理专员
- MEHQ PPM 抑制剂;阻聚剂含量
- PPM PeriodicPermanentMagnet 周期永磁场
- AS ppm 作为页
短语
英英字典
- abbreviation for parts per million (= a unit for measuring the amount of a substance that is mixed with a liquid or another substance)
- parts per million
剑桥英英字典
柯林斯英英字典
专业释义
- 百万分之一
- 脉位调制
- 脉位调变
- 脉波相位调变
- 脉波位置调变
- 百万分之几 (parts per million)
- 百万分率
- 脉冲位置调制
- 脉冲相位调制
- 每分钟列印页数 (pages per minute)
- 页/分
- 脉位调变 (pulse position modulation)
- 百万分之几