유입

inflow; influx

Explanation

〔流入〕

1. inflow; influx
The flowing of liquid, gas, heat, etc., into a place.

2. inflow; influx
The coming of money, goods, etc., into a place.

3. influx
The coming of a culture, idea, etc., into a place.

4. influx
The crowding of people into a place.

5. influx
The coming of germs, etc., into a place.

Examples
폐수 유입
열의 유입
유입이 되다

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