也就是说，根据精确的数学推算，人们被假定可以以他们最好的方式来实现他们的目标。
That is, with mathematical precision, people are assumed to do the best they can to achieve their goals.
我们用这种方法精确推算了几个已经被充分研究的类群，例如哺乳动物、鱼类和鸟类，来证明这个方法的可信度。
The approach accurately predicted the number of species in several well-studied groups such as mammals, fishes and birds, providing confidence in the method.
应以路线固定表和曲线要素表中的原始数据为基准推算坐标才会得到更高精度的数据，精确指导施工。
Should regard initial data in the charts of route location and curve elements as datum that coordinates calculate will just get the datum of high accuracy, Guide constructing accurately.
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