如果预应力筋满足en ISO 15630中对弯曲性的要求，则可以假设其有足够的弯曲塑性。
Adequate ductility in bending may be assumed if the prestressing tendons satisfy the requirements for bendability of en ISO 15630.
欧文·费雪还画了一条曲线，一条社会的生产可能性边界，他让它向下弯曲。
Irving Fisher also drew on the curve, a production possibility frontier for society, which he made downward-curved.
他们采用现代天文学家的假设，假定宇宙是平坦的，计算出宇宙处于以下三种状态之一的可能性：平坦的，正向弯曲或反向弯曲。
Using modern astronomers' assumptions, which presuppose a flat universe, they calculated the probability that the universe was in one of three states: flat, positively curved or negatively curved.
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