1) concavo-convex tube
凹凸管
1.
A 3-D numerical simulation of the flow and heat transfer process in a concavo-convex tube was carried out by using the Fluent Software.
利用Fluent数值模拟软件,对凹凸管进行了流动和传热的三维数值模拟,得到了 管内的流动速度分布及温度分布,并将模拟结果与光滑管的结果进行了对比。
2) bumpy road
凸凹
1.
Analysis of elderly people s discrimination capability on bumpy roads;
老年人路况凸凹识别能力的检测与分析
3) concave-convex
凹凸
1.
The concave-convex property of a surface is one of the important and classical issues in differential geometry.
曲面的凹凸是微分几何学中的经典问题之一,划分出曲面上不同的凹凸区域,对于研究曲面的凹凸以及其他性质是一件很有意义的工作。
2.
This article present the continuity,differentiability,monotonicity,concave-convex,parity and periodicity of the function netermined by the definite integral of variable upper limit and variable lower limit,establishes the sufficient and necessary requirements of functional convex and integrability of derived function by using the definite integral of variable upper limit.
给出了变上限与变下限定积分所确定函数的连续性、可微性、单调性、凹凸性、奇偶性、周期性,利用变上限定积分建立了函数凸及导函数可积的充分必要条件。
3.
Some definitions and discriminating methods have been given on the monotonicity,extreme value,concave-convex and inflection points of the curve r=r(θ).
研究了极坐标系中曲线r =r(θ)的切线、法线、渐近线方程 ,给出了r =r(θ)的单调性、极值、凹凸、拐点的定义和判别法 ,从而解决了《数学分析》中未曾解决的极坐标方程所表示的曲线的作图问
补充资料：管山吃山﹐管水吃水
1.比喻干什么事情﹐就靠什么生活。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条