โรงงาน, ลม, ฤดูใบไม้ร่วง, พลังงาน, สนาม, ภูมิประเทศ, กังหันลม, เส้นทาง, ทางหลวง, การพัฒนาอย่างยั่งยืน, นิเวศวิทยา
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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