concave convex的例句大全

This paper introduces the developing of a cylindrical gear drive with dual convex-concave mesh& the bidirectional circular tooth gear drive.

本文开发研究了一种具有双重凸凹啮合的圆柱齿轮传动&双向圆弧齿轮传动。

Exact Multiplicity of Semi-linear Differential Equations' Solutions Involving Concave-convex Functions

含凹凸函数的半线性微分方程解的确切个数

By means of wind tunnel simulation, characteristics of wind loading on membrane cantilever structures of concave and convex shape are studied corresponding to Zhaoyuan and Dazhou Stadium in China.

以分别具有下凹和上凸形状膜结构罩篷的山东招远和四川达州体育场为例，通过风洞试验模拟的方法对比研究了这两种体育场罩篷的风荷载特性。

In adults its contour may be straight, slightly concave or slightly convex.

成人肺其形状可以是直的, 轻微凹下或轻度突出.

The shape of the evaporation wave front is highly irregularly, it is neither concave nor convex.

蒸发波前端的形状非常地不规则, 它既不是凹形的也不是凸形的.

The third is by mechanical means in the notes on the convex and concave imprint flu.

三是用机械在钞票上压印了凸凹感.

The paper analyses the distribution regulation of air cushion field press and press grade in convex curve and concave curve of air cushion belt conveyor and discusses the curve radial R1 and the effect of belt tension on air cushion field major factors.

本文分析了气垫带式输送机在凸凹弧段运行时，气垫场的压力、压力梯度的分布规律，并讨论了凸凹弧段曲率半径R1，胶带张力对气垫场主参数的影响。

It researched on a practical project based on the design theory educed before, ascertained the radius of convex curve with alterable angles and concave curve with alterable angles, finished the design of disposal structure.

根据所研究出的设计理论，进行一项工程实例的设计研究，确定该实例的凹变坡和凸变坡转弯半径，完成转弯段布置结构设计。

The data also demonstrate that concave slope is more pro runoff production and soil erosion than other slope shapes ( convex, S, linear) under grassland ( alfalfa) conditions.

对于草地（紫花苜蓿）类型，凹坡相对于其它坡型（凸坡，S型，直线坡）最容易产生径流和侵蚀。

Finally get the following conclusions: ① Compared with planar sloped and concave slope, the toppling deformation of convex slope is easier to happen.

分析结果可以得到：①较之凹形坡与平形坡，凸形坡更有利于斜坡的倾倒变形破坏。

That is to say, the concave slope is the most stable, the horizontal slope is the second and the convex slope is the worst.

即在坡度一样的情况下，凹坡最稳定，平坡次之，凸坡稳定性最差。

Divide the erosion failure surface into four different types: linear, Convex curve, upward Concave arc and downward concave arc.

将破坏面形态划分为直线型、凸弧型、上凹弧型、下凹弧型共四种类型。

One-fourth convex arc milling cutter one-fourth concave arc milling cutter

四分之一凸圆弧铣刀四分之一凹圆弧铣刀

Using NN to Simulate and Design Orthogonal Convex or Concave Milling Cutter's Profile About the Error Analyses and Revision in Cutting Cone by Using Arc Front Form Tool

正前角圆弧铣刀齿形的神经网络模拟与设计正前角成形车刀加工圆锥面工件的误差分析与修正

End mill gashing and radius grinder Using NN to Simulate and Design Orthogonal Convex or Concave Milling Cutter's Profile

端铣刀和侧面铣刀磨床正前角圆弧铣刀齿形的神经网络模拟与设计

Convex and concave for gripping must be distributed reciprocally in this range.

在此范围内,用于夹持的凹凸处必须一一对应分布.

Some known results on monotonicity of the arithmetic means of convex and concave functions are improved.

改进了有关凹函数和凸函数的算术平均值单调性的某些已知结论.

Stretch manner has different influences on concave boundary and convex boundary of model.

伸展方式对于凹形边界和凸形边界具有不同的影响.

Alternative characterization of concave and convex functions which is sometimes useful.

对于凹函数和凸函数还有一个替补的表征,有时它是有用的.

Having greater curvature on the concave side than on the convex side . Used of a lens.

凹凸的凹面曲率大于凸面曲率的.