Combined hourglass control in analysis of cold ring rolling process;2. Recent status and development of real-time measurement and online control technology in cold ring rolling ;3. The influence law of feed rate of idle roll on the quality of end face of ring,axial width spread ratio,roll force,roll moment and metal flow characteristic in cold ring rolling process has been explored through the FEM numerical simulation of the ring with rectangular cross-section based on the elastic-plastic dynamic explicit FEM under the Abaqus software environment.

基于Abaqus/Explicit提供的顯式動(dòng)力學(xué)有限元算法老外特级毛片免费的，對(duì)矩形截面環(huán)件冷輾擴(kuò)進(jìn)行了有限元數(shù)值模擬国产盗摄无遮挡裸体视频，揭示了芯輥進(jìn)給速度對(duì)環(huán)件冷輾擴(kuò)過(guò)程中環(huán)件端面質(zhì)量欧美黑人做嫒在线视频、軸向?qū)捳孤驶粕?8禁网址、輾擴(kuò)力、輾擴(kuò)力矩以及金屬流動(dòng)特性的影響規(guī)律国产精品永久免费啪啪啪，并從金屬塑性成形原理和塑性加工力學(xué)等角度對(duì)這些規(guī)律進(jìn)行了合理的解釋?zhuān)瑥亩@得了進(jìn)給速度對(duì)冷輾擴(kuò)成形的影響規(guī)律日本a在线网址，為環(huán)件冷輾擴(kuò)在實(shí)際應(yīng)用中進(jìn)給速度的選擇提供了依據(jù)，對(duì)揭示冷輾擴(kuò)成形機(jī)理也具有十分重要的意義国产精品自拍在线。

So, after glass blowing was invented, the hourglass came into use.

所以玻璃吹制技術(shù)發(fā)明以后成年人的网站，沙漏開(kāi)始使用。

After glass blowing was invented, the hourglass came into use.

吹制玻璃術(shù)發(fā)明后91在线播放，滴漏計(jì)時(shí)器便開(kāi)始使用欧美一级A片大全免费观看。

The structure parameters of the Hourglass rubber spring have been optimized for fulfilling the optimum nonlinear stiffness curve. The optimization result indicated that Using of rubber spring with optimum nonlinear elasticity character resulted in good and constant ride comfort of the truck.

以此曲線為優(yōu)化目標(biāo)，完成了新型懸架橡膠彈簧結(jié)構(gòu)參數(shù)優(yōu)化东北老妓女叫床脏话对白视频；優(yōu)化后的橡膠懸架系統(tǒng)能使車(chē)輛具有良好的平順性和穩(wěn)定性亚洲欧美一区二区蜜臀图片。

In an effort to lighten up their shoes, manufacturers often use an hourglass-shaped outsole design for some models.

為了減輕鞋的重量，制造商們通常在某些型號(hào)上使用沙漏狀的鞋底直接观看黄网站免费裸体赌场网站。

Now for the fun part-choosing garments that give you the right silhouette to balance your figure or, for hourglass-shaped women, to keep you in balance.

這部分也很有趣--為你的身材挑選適當(dāng)?shù)姆棸榈貉侵蕹赡暧谰猛荆屇愕捏w型看上去更加勻稱(chēng)。而對(duì)于沙漏型的女士來(lái)說(shuō)美女操白浆网站，下面將教你如何通過(guò)服飾來(lái)展示你美麗的身段日韩一级毛一欧美一级毛免费。

In June 2006, the vortex appeared hourglass-shaped, closely matching observations in the north polar region by Pioneer Venus.

2006年6月，這個(gè)漩渦呈現(xiàn)出沙漏的形狀毛片高清视频在线看免费观看，和在金星北極&金星先鋒&觀察到的情況很像爱搞无码在线。

Venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen.

西半球有毒的蜘蛛；雌體為黑色且腹部下方有沙漏狀的紅色斑點(diǎn)国产网友愉拍精品视频。

For a more casual look, the sash belt is styled over everything from glamorous cocktail dresses and hourglass-shaped suits to coats and trousers.

要營(yíng)造更為休閑的造型最大黄色网站一级在线，可將裝飾腰帶搭配從華麗雞尾酒禮服與沙漏造型套裝到外套和褲裝等各種款式。

The central ring appears to represent the narrow waist of an hourglass-shaped puff of gas, and the larger rings are the edges of two teardrop-shaped lobes, evidently created by the star a few tens of thousands of years before it exploded.

中央的環(huán)看來(lái)是沙漏狀云氣的細(xì)腰久久免费大黄片，而較大的圈圈則明顯是在爆炸前數(shù)萬(wàn)年一a在线视频插进去了，該恒星就已經(jīng)噴出的兩片淚珠狀云瓣的邊緣。