凹的

Then, using the interval arithmetic tool, construction methods of several quasi convex-concave extension are presented for general functions which are provided with arithmetic expression.

其次，对由算术表达式给定的一般函数，利用区间算术工具给出了几种拟凸-凹扩张的构造方法。

Firstly, a new quasi convex-concave extension definition is introduced to study general constrained optimization problem, which is much approximate function's shape than the interval extension.

首先，对一般约束优化问题，引入一新的概念，即拟凸-凹扩张，它比区间扩张能更好地逼近函数的形状。

Experiments show that, in applying the correct mold structure and appropriate process conditions, when the temperature at 350 ° C billets around Rafah Deep Mold temperature at 350 ° C and about good lubrication circumstances, can be successful in stamping on the crank press to produce magnesium phone alloy shell.

实验表明，在应用正确的模具结构和适当的工艺条件下，当坯料温度在350℃左右，拉深凹模温度在350℃左右和良好润滑情况下，能够成功地在曲柄压力机上冲压生产出镁合金手机外壳。用英文翻译一下哦！！！！！！！！！谢谢！！！！！！！！

The radius of the punch and die cutting edges is laid out to produce the desired circular shape without nick ing into the circle as the work proceeds.

在工作过程中，冲头与凹模切口的半径定位，确保形成所需的圆形，而不至于在圆边产生&缺口&。

The radius of the punch and die cutting edges is laid out to produce the desired circular shape without nicking into the circle as the work proceeds .

在工作过程中，冲头与凹模切口的半径定位，确保形成所需的圆形，而不至于在圆边产生&缺口&。起毛促进起球。

The gravure process uses a metal printing cylinder onto which the image is etched.

在凹印过程中使用的金属圆柱上印刷的形象铭刻。

"They're getting slack, I'm afraid," said the little deep-eyed man,"Our principle is to amuse everyone."

&我怕他们都有点不上劲了，&凹眼睛的矮个子说，&我们的原则是要使得人人都有兴趣。&

Increasing the shim thickness increases the gap between the die face and blank holder and allows more metal to flow inward.

增加垫片的厚度也就是增加凹模和压边圈间压料面的间隙从而容许更多的金属材料向内流动。

A three-dimensional finite-element model, which includes plate, punch, die and holder pad, is established to simulate the drawing process based on the characteristics of the square box part.

根据方盒形件的特点，本文建立了包括板料、凸模、凹模以及压边圈在内的三维有限元分析模型。

Under the universal equation of double-concave disc-shaped bubble, the analytical solution has been deduced. It confirmed theoretically that ethanol can lead to the larger volume of red blood cells. The fluorescence experiment result verified this conclusion.

通过建立双凹圆盘形膜泡的普适方程，得到了解析解，从理论上证实了乙醇作用能引起红细胞体积变大的可能性，并利用荧光分析技术证实了这一结论。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了