• ppm

    ppm 基本解释

    • abbr. 百万分率,百万分之…(parts per million)

    ppm 英文词源

    ppm
    abbreviation of parts per million, attested by 1913.

    ppm 双语例句

    1. 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.

    来自辞典例句

    2. 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.

    来自互联网

    3. 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.

    来自互联网

    4. This article presents a class for using PPM to compress a file.
    本文介绍了使用PPM的压缩文件一类.

    来自互联网

    5. Probabilistic Packet Marking ( PPM ) is an efficient and practical scheme.
    概率包标记 ( PPM ) 是一种比较有效且实用的解决方法.

    来自互联网

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