在板料成形领域，零件的最终形状往往取决于成形后的回弹，所以回弹问题一直是研究的热点。
In sheet metal forming fields, the final shape of part is commonly controlled by the springback after stamping, so the springback problem is the hotspot of research all the time.
作为国际金融重要的组成部分，汇率一直是人们研究与讨论的热点问题。
As an important part of international finance, exchange rate is always the hot topic for discussion and research.
对沥青路面车辙问题的研究一直是道路工程领域的热点之一。
The rutting of asphalt pavement is always one of the research focuses in road engineering.
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