เสา, สายเคเบิ้ล, ภาพเงา, หอส่งสัญญาณ, หอพลังงาน, ไฟฟ้า, อำนาจ, อุตสาหกรรม, ภูมิประเทศ, เมฆ, สภาพอากาศ
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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