インテルのインスタグラム(intel) - 9月8日 23時56分

Modern suspension #bridges are supported by thousands of steel wires tightly bound together. A single #steel wire, only 0.1-inch thick, can support over 1,000 lbs. #sciencesnap #lookinside #didyouknow

[BIHAKUEN]UVシールド(UVShield)

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