查询词典 shaving dies

The forth chapter is the design of bending and flanging compound dies.

第三章是冲孔切边复合模的设计，包括各种模具零件的选择和一些零件尺寸的计算。

Obviously the thermal conditions of dies and die castings and the fluid flow of liquid metal have critical influence on the quality of casting product, the production rate and the die life. Hence, computer numerical simulation has become an efficient tool to analyze as well as to control the thermal and fluid flow fields in die casting process.

压铸过程的温度场和流场是影响压铸产品质量、生产率和模具寿命的重要因素，计算机数值模拟技术为压铸温度场和流场的研究提供了有效的手段，同时也为压铸工作者控制压铸温度场和流场提供了有力的工具。

In this dissertation the"Penalty"finite element method was employed to compute the velocity of the three-dimensional flow of power-law fluid in a profile die. In order to decrease the needed computer memory and raise the stability of numerical simulation, a set of decoupled methods such as PFEM, pseudo-body force method and transformation of momentum equation to the elliptic equation was developed to establish the general finite element equations to compute the distributions of velocity and viscoelastic stress of the three-dimensional viscoelastic flow of the Phan ThienTanner fluid in a profile die. During numerical simulation of the extrudate swell of the PTT fluid, the flow in the die and out of the die was analyzed separately, which demands less computer memory. The key techniques used in numerical simulation of the three-dimensional extrusion from dies such as decision of boundary conditions, creation of initial velocity field, selection of penalty factor, high Weissenberg number problem , regeneration of the free surface were studied in detail.

中文题名聚合物异型材口模挤出三维流动研究副题名外文题名 Study on three-dimensional flow of polymer melts during the process of profile extrusion from dies 论文作者涂志刚导师柳和生包忠诩教授学科专业材料加工工程研究领域\研究方向学位级别博士学位授予单位南昌大学学位授予日期2001 论文页码总数148页关键词挤出成型聚合物材料挤出口模聚合物异型材馆藏号BSLW /2003 /TQ320 /9 本文建立了求解挤出口模内幂律流体流动速度场的通用三维罚有限元模型；对于非线性粘弹性的Phan Thien-Tanner流体，为了降低模拟计算对计算机硬件的要求，并使模拟计算更加稳定，采用了一种去耦算法，包括罚有限元方法、拟体力方法和动量方程的椭圆类方程转化方法，并建立了求解速度场和粘弹性应力场的总体有限元方程；对于PTT流体的挤出胀大问题，提出了挤出胀大熔体口模内外分离模拟法，这样可以显著降低数值模拟对计算机硬件的要求。

In the end, after he was defeated by his friend in the disguise of a knight, Don Quixote forswears all the chivalric truths he followed and dies from a disease.

最后，堂吉诃德被化装成白月骑士的朋友打败，放弃行侠游历，回家不久后病逝。

On the base of the characteristics of the plate frame, a new process that produces plate as section by section is designed in this thesis and any type of plates can be manufactured by one suit of dies through this process.

全焊式板式换热器克服了普通板式换热器的缺点，在国外得到了广泛应用。本文根据引进的国外产品，设计制造了一条用来生产全焊式板式换热器板片的自动化冲压生产线。

Dies for friction hot forming of metal tube end, workpiece forming principle and selection of die materials were presented in this paper.

本文简要介绍了金属管端摩擦热成型模具，工件成形原理以及模具材料选择。

Group A Streptococcus is a Human pathogen which causes 18.1 million cases disease and 0.51 million people dies. GAS causes severe disease including scarlet fever, rheumatic fever, rheumatic heart disease and acute glomerulonephritis, the rheumatic heart disease is the major reason which causes heart disease in the children and young people.

A型链球菌是是一种人类的致病菌，在全球每年会有大约1800万人受到A型链球菌的影响，且会有51万人死於A型链球菌所造成的疾病。A型链球菌所造成的疾病包含猩红热、风湿热、风湿性心脏病、急性肾丝球肾炎等，其中风湿性心脏病是造成孩童以及年轻人得到心脏病的主要原因。

Beowulf slays the monster Grendel and its mother, becomes king of the Geats, and dies fighting a dragon.

贝奥伍夫杀死妖怪格伦德尔及妖怪的母亲，成为耶牙特的国王，死于与一条龙的争斗中

Beowulf slays the monster Grendel and its mother, becomes king of the Geats, and dies fighting a dragon.

裴欧沃夫》是被认为是盎格鲁-撒克逊的民族史诗。

Every time bath when, with dry towel gourd soft perhaps brush eliminate dies skin (if be sensitivity skin, choose the bath product that contains salicylic acid please); Use embellish skin to show massage whole body next, moist skin: Return in skin tepid when having hydrosphere, undertake massage, use towel to show redundant embellish skin efface.

每当沐浴的时候，用干丝瓜或者柔软的刷子除去死皮（如果是敏感性肌肤，请选用含有水杨酸的沐浴产品）；然后使用润肤露按摩全身，滋润肌肤：在肌肤还温热有水气的时候就进行按摩，并用毛巾将多余的润肤露抹去。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48