The specific gravity of iron ore is roughly five. That means it cannot float on water, or air. The iron ore price has no respect for the laws of physics. It has jumped almost 30 per cent over the past two months despite a dire outlook for demand.
鐵礦石的比重大約爲5，這意味著它無法浮在水面上或空氣中。但鐵礦石的價格卻沒有遵守物理定律。雖然需求前景黯淡，但鐵礦石的價格過去兩月已上漲近30%。
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