Pictographic: A dish of food 良 with a lid on top 人Radical:

meaning for shí:

  • - to eat
  • - food
  • - animal feed
  • - eclipse

meaning for :

  • - to feed (a person or animal)

fúěrmǎlín福尔马林
shānchú删除
yǎngqì氧气
cóng
shuǐ
yīncǐ因此
dāngwùzhījí当务之急
shì
jīng
chǔlǐ处理
de
shí
shuǐ
shì
jiāqì加气

Formalin removes oxygen from the water , so it is imperative that the treated water is well aerated .