ไฟฟ้า, พลังงาน, อำนาจ, โครงสร้างพื้นฐาน, หอคอย, การส่งผ่าน
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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