化學需氧量 huà xué xū yǎng liàng

chemical oxygen demand (an environmental indicator)

Word data

HSK Not in HSK
Frequency Unknown

Definitions

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

Characters

Character Meaning
化 huà HSK 3
to change into; to transform; to make into
學 xué
to learn; to study; science
需 xū HSK 3
to need; need; to require
氧 yǎng HSK 6
oxygen (chemistry)
量 liàng HSK 4
quantity; amount; capacity