化学需氧量

huà xué xū yǎng liàng

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Definitions

  1. 1. chemical oxygen demand (an environmental indicator)

Child Words of 化学需氧量

化
huà

to make into

化学
huà xué

chemistry

学
xué

to learn

氧
yǎng

oxygen (chemistry)

量
liáng

to measure

量
liàng

capacity

需
xū

to require