qián liú

潜 流

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1
n.undercurrent; underflow
- qiáng dà de qián liú bǎ tā juǎn dào hǎi lǐ qù le
  强大的潜流把他卷到海里去了。
  He was carried out to sea by the strong undertow.
- tǎo lùn le màn liú xī gǔ róng yán liú hé qián liú sān zhǒng liú dòng fāng shì
  讨论了漫流、溪谷熔岩流和潜流三种流动方式。
  Overflow, rivulet-val-ley flow and undercurrent are discussed.
2
n.emotions/feelings hidden deep inside
- chuí zhí qián liú rén gōng shī dì bù lì yú dà qì fù yǎng
  垂直潜流人工湿地不利于大气复氧。
  Vertical subsurface flow constructed wetland has negative effect on reaeration.

潜流