concave

A fixed reference point on the concave side of a conic section .

圆锥截面凹面的固定参考点。

After achieving the desired shape , I cast my model in plaster to create a concave mould .

在获得我想要的形状之后，我把我的模型上了石膏，从而创造一个凹面的模具。

The palm of one 's hand is slightly concave .

人的手掌是微凹的。

His figure looks very funny in the concave mirror .

他的样子在凹镜里显得非常可笑。

The cloven hooves are sharp edged , elastic and concave .

蹄锋利，呈凹形，富有弹性。

Because there is no abrasion between the concave and convex , the nut is reusable .

因为凹面与凸面没有磨损，螺母可以重复使用。

A concave mirror creates an image from this light using a design pioneered in the17th century , by Sir Isaac newton .

早在17世纪，艾萨克.牛顿就开创性的利用这个光，让凹透镜产生了一个图像。

Morphological analysis method of block based on classification of concave zone

基于凹形区分类的块体几何形态分析方法

Analysis and application of concave pressure - restoring curves for oil well

油井凹型压力恢复曲线的分析与应用

The Working Principle and Important Technique of the Concave - printing Machine

凹版印刷机的工作原理与核心技术

Numerical Analysis on the Mechanical Properties of Heat Preserving Concave Concrete Block Wall

节能凹形砌块墙体力学性能数值分析

The fixed point of concave and convex operation in K space

K空间中一类凹与凸算子的不动点

A Method of Extreme Concave Surface Interpolation for 3-D Medical Image Reconstruction

三维医学图象重建中的极端凹表面插值方法

Factors influencing concave mould manufacturing precision in the processing .

对加工过程中影响凸凹模具制造精度的因素进行了深入仔细的研究。

Finite element artificial transmitting boundary method for near field scattering from concave object

凹面体散射近场的有限元-人工透射边界解法

A batch of numerical control processing of cylinder concave wheel

圆柱凸轮的批量数控加工

CAD of a Combination Concave Model Tool with Prestressing Force

预应力组合凹模的CAD

Manufacturing for ruling concave metal grating with a long focal length

机械刻划长焦距凹面金属光栅的研制

Characteristic analysis of focused impulse sound field generated by concave spherical surface transducers

凹球面聚焦脉冲声场特征的分析

Application of frequency converter in control system for production line of concave format color - printing machine

变频器在高速凹版彩印机生产线控制系统中的应用

Field arrangement and dosimetry verification for concave target Culture Region

凹形靶区布野方法及剂量验证的研究

Controlling for Welding Distortions of huge concave box beam structure

大型凹箱形梁结构件的焊接变形控制

Increase permissible stress of the cold extrusion concave and prevent break

冷挤压凹模强度的提高与开裂失效的预防

Design and Manufacture for the Concave Mold Used in Inner Box of Refrigerator

冰箱内胆真空成型凹模设计制造

Discussion on New Level Preparation for High bench Mining in Deep concaved Open pit

深凹露天矿高台阶开采新水平准备方法的探讨

The Optimum Design of Composed Concave Die by Thick-walled Cylinder Theories

基于厚壁圆筒理论的组合凹模优化设计

Measuring the focal length of a concave lens with the method of reflection

反射法测凹透镜焦距

The radius of the concave corner is a very important structural parameter .

凹槽拐角的曲率半径是凹槽MOSFET一个重要的结构参数。

Causes of crack on concave die and prevention measures

凹模裂纹的成因及其防止措施

Fixed point theorems of some concave ( convex ) increasing operator

一类凹（凸）增算子的不动点定理