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化学需氧量

huà xué xū yǎng liàngdictionary entry
DEFINITION CC-CEDICT
(environmental science) chemical oxygen demand / COD
Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-774c818b096410a5. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

化學需氧量 化学需氧量 [hua4 xue2 xu1 yang3 liang4] /(environmental science) chemical oxygen demand; COD/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

Other forms in these source records: 化學需氧量

  • 化
    huā

    See the full entry for source details.

    huà

    to make into / to change into / -ization / to ... -ize / to transform / abbr. for 化學|化学[huà xué]

  • 学
    xué

    to learn / to study / to imitate / science / -ology

  • 需
    xū

    to require / to need / to want / necessity / need

  • 氧
    yǎng

    oxygen (chemistry)

  • 量
    liáng

    to measure

    liàng

    capacity / quantity / amount / to estimate / abbr. for 量詞|量词[liàng cí], classifier (in Chinese grammar) / measure word

Reference definitions from CC-CEDICT.