It is important that the springback is calculated accurate during numerical simulation because springback after sheet metal forming has a important influence in precision forming.
板料成形后的回弹对精度影响较大,在数值模拟时对回弹进行精确预测显得非常重要。
But the selectivity calculated in this way is not as accurate as selectivity calculated using data distribution.
但是,使用该方式计算的选择性不如使用数据分布计算的选择性准确。
The project blog has just put up a fascinating (to me, at least) post about the way in which they've calculated what they believe is a reasonably accurate count of every book in the world.
这个项目的博客刚刚发布了一个令人兴奋的帖子(至少对我来说),是关于他们是如何测算他们认为比较合理准确的世界图书数目的方法的。
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