mill gang
group of windmills that together pump water out of a polder, in what each mill pumps the water to a higher basin before it enters into a canal
en-US/ˈmɪl ˈɡæŋ/
en-GB/ˈmɪl ˈɡæŋ/
group of windmills that together pump water out of a polder, in what each mill pumps the water to a higher basin before it enters into a canal