プログレッシブ和英中辞典(第4版)の解説
すみわけ【棲み分け】
〔生態〕habitat segregation；〔共存〕coexistence, division (of the market)
その企業は既に電気自動車とガソリン車の棲み分けを検討している
The company is already considering how to divide their market between electric and gasoline cars.
製品の差異化を図らない限り２社の棲み分けは難しいだろう
The coexistence of the two companies will be difficult unless they differentiate their products.
成田と羽田の合理的な棲み分けが検討されねばならない
We have to consider how to draw a rational distinction [line] between the functions of Narita and those of Haneda.