flatness problem

基本解释

In modern times, the problem shows the flatness of man.
而這一問題在現代顯出人類空前的貧乏。
The problem is partly their flatness, as with Keds and Vans. However ballet pumps, which have no string or heel, have other specific problems.
和帆佈鞋一樣，雖然芭蕾鞋的問題也在於平底，但是由於其既無底又無繩，這就導致了另外一些特殊問題。
ysl47406.blog.163.com
In this paper, the mathematical model of flatness error is established. The theory of optimal approximation is used to analyze the theoretical problem of flatness error.
應用最佳一致逼近理論，從最小條件出發建立了評定平麪度誤差的數學模型，對評定平麪度誤差的理論問題進行了分析研究。