The central body of the plane is made entirely of carbon composite material, which makes the plane lighter and more fuel efficient.
机身主体全部由碳合成材料制成，因此重量更轻，更加省油。
The central body of the plane is made entirely of carbon composite material, which makes the plane lighter and more fuel efficient.
机身主体全部由碳合成材料制成，因此重量更轻，更加省油。
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