เฮลิคอปเตอร์, เที่ยวบิน, ขนส่ง, ใบพัด, สนามบิน, ทวิปแอนตาร์กติกา, โลจิสติก, ลานจอดเฮลิคอปเตอร์, กู้ภัย, เทคโนโลยี
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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