concave and convex

基本解释

Last, studies the influence of different curvature on the film cooling effectiveness of concave and convex surfaces.
同時，研究了曲麪曲率的變化對氣膜冷卻傚率的影響。
In the past, it was very hard to change the shape of the permanent magnet torque characteristic and describe its concave and convex extent.
以往對如何改變永磁力矩特性曲線的形狀及如何描述其凹凸程度一直是繼電器設計人員難以解決的問題。
Objective: To observe the effect of concave and convex on growing and the refractive developing of guinea pig eyes and to establish lens-induced animal model of myopia or hyperopia.
目的：觀察凹透鏡和凸透鏡對豚鼠眼球生長和屈光變化的影響，建立透鏡誘導型屈光不正動物模型。