尖角

The features of this dissertation are lie in: a The concept of"Influence Distance"was presented to quantitatively express"corner effect", systematicly studied on the influence of all factors on"influence distance". It could provide reference to angle designing from the view of heat treatment; b Deeply studied on the influence of shape factor to carbon concentration field. It could provide reference to gear designing from the view of heat treatment; c New model was set up to describe the two-dimensional concentration field of carbide dispersion carburizing. The shortcomings of"effective diffusion constant method"and"equilibrium constant method"were overcome in this model.

本文的特色在于：①提出了用"尖角影响距离"定量描述"尖角效应"的方法，并系统研究了各种因素对"尖角影响距离"的影响规律，从热处理角度为工件尖角部位的设计提供依据；②首次深入研究了齿轮的各种形状因素对浓度场的影响，从热处理角度为齿轮设计提供依据；③建立了能够更有效地模拟过饱和渗碳浓度场的数学模型，该模型克服了"有效扩散系数法"及"平衡常数法"的不足，与"最小自由能法"可互为补充。

The paper considers the Dugdale model in elasto-plastic fracture mechanics, and smoothness of the wedge profile, which suppress the stress singularities both at the edges of contact and at the sharp corners. The approach avoids the self-consistent numerical calculations for the real material potential.

研究中运用弹塑性断裂力学中的Dugdalc模型和对冲头尖角的连续化处理，消除了接触区边缘及尖角处的应力奇异性，并避开了自洽问题数值求解的困难，得到了完整的理论公式。

Products such as the angle of this, the cusp very demanding sharp erosion profile and ordinary Smooth Connection clear modelling methods could not meet the required processing, electroform production can be solved.

如产品角度太深，尖角要求极尖，蚀纹面与光面接线分明等普通制模法无法达到要求的加工工艺，电铸制作均可解决。

A short while later, the fire in the courtyard was lit again when a hen laid a fantastic egg that looked like a Ping-Pong hall with an appendage like that on a Phrygian cap.

没过多久，我们又得在院子里点起火来，因为有只母鸡下了枚出奇的蛋：好像只乒乓球，上面连着个软的尖角，就像弗里吉亚帽的帽尖一样。

Under the condition of pure thermal load, enlargement of particle size and lengthdiameter ratio and particle cluster will increase the serious plastic thermal residual strain concentration in the matrix near the pointed particle corner and the serious compressive thermal residual stress concentration in the pointed particle corner.

发现在纯热载荷作用下，颗粒尺寸加大、长径比加大及颗粒的团聚会使颗粒尖角附近基体的塑性热残余应变集中和颗粒尖角上严重的残余压应力集中加剧。

Squatting, lying, and milling aimlessly about the lower level were a dozen of so large lizard-like beasts that looked like the product of some mad geneticist's cross of Tatooine krayt dragons wit h Haruun Kal ankkoxen : four meters tall at the shoulder, long crooked legs that ended in five-clawed feet clearly designed for scaling rocky cliffs, ten meters of powerful tail ridged with spines and tipped with a horn-bladed mace, a flexible neck leading up to an armor-plated head that sported an impressive cowl of spines of its own—they looked fearsome enough that Obi-Wan might have thought them some sort of dangerous wild predators or vi cious watchbeasts, were it not for the docile way they tolerated the team of Utai wranglers who walked among them, hosing them down, scraping muck from their scales, and letting them take bundles of greens from their hands.

在下层那儿，蹲着的，躺着的，或是在漫无目的地殴斗的，是整整一打类似蜥蜴的巨型野兽，它们看上去就像是某个科学狂人将塔图因的克雷特巨龙和哈伦·卡尔的安科森兽糅合在一起的成品：肩高四米，长而弯曲的腿的末梢长着五根用于攀登岩壁的爪子，十米长的强壮尾部上扎满了尖刺，末端是一个尖角满布的骨槌，柔韧的颈部支撑着一个布满铠甲的脑袋，脑袋上又炫耀着一簇可怕的尖刺——它们的长相实在太恐怖了，使得欧比旺不禁觉得这些家伙不是危险的野生掠食者，就是冷血的守卫神兽，可恰恰相反，它们在那些尤泰牧人面前却表现得十分乖巧温顺，任由他们从中穿行，往它们身上浇水降温，从它们的鳞片上刮去污物，以及将一捆捆青草递到它们嘴边。

One thing I need to improve upon, is the sharp points along the scalloped edges of the shawl.

这件披肩还算满意，唯一遗憾的是，那个尖角无法拉的再尖一点。

The algorithm onwhich the adjustment parameters can be worked out according to the geometricparameters of the chamfering is derivated.

影响平面尖角几何形状的是刀具的姿态参数，影响尖拱圆角几何形状的是刀具的位置参数和刀刃圆弧半径。

The simulation results show that the asymmetry structure of the ratchet die cavity influences the BMG's flowing behavior greatly. During the material filling tooth cavity, dead zone volumes exist and situate on the areas with sparse teeth distribution. The full filling or not of the ratchet tooth tips, as the final filling region of the forming process, determines the super-plastic forming quality. Adopting smaller punch speed or longer load holding time is necessary for full filling of the tooth tips.

研究结果表明，棘轮模腔结构的不对称性对材料的流动行为影响显著；在材料向齿形的充填过程中存在流动死区，死区的位置处于齿形分布较稀疏的部位；齿形尖角是成形的最后充填部位，在终成形阶段采用较小的压下速度或较长的保压时间，有利于齿形尖角的完全充满。

Mom said: screw head of the prawn shrimp shell we first break the sharp corners, and then screw shell, put its head inside the dirt washed opened on the list, so do not be afraid to stab your shrimp with sharp corners.

妈妈说：拧虾壳要先把虾头的尖角折断，然后再拧壳，把它的头里面的脏东西洗开就行了，这样就不用怕虾用尖角来刺你。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。