1) curved die
型线凹模
1.
In a cylinderical coordinate,force of bar extrusion of different curved dies is studied theoretically,and the upper limit method is used to deduce the formula for caulcation.
在柱坐标系下,采用上限法推导了不同型线凹模棒材挤压力理论计算公式;并计算了锥模棒材挤压力,其计算结果接近实测值,相对误差平均值为2。
2) profile
型线
1.
Analysis and improvement of the five-screw pump profile;
五螺杆泵型线分析及改进
2.
Study on profile of Roots vacuum pump rotor;
罗茨真空泵转子型线的研究
3.
A rotor profile suitable for gas-cooled Roots pump;
适用于气冷式直排大气罗茨泵的一种转子型线
3) linetype
型线
1.
According to the design improvement on feed-water control valve of a 50MW and 100MW boiler,this paper illustrates the principle on designing high differential pressure control valve,and DN50;a new thought and method on designing the linetype of PN20 bypass-water control valve has been taken into consideration.
以50MW、100MW锅炉主给水系统调节阀的改进设计,论述了对高压差调节阀的设计原则,以及DN50;PN20给水旁路调节阀上采用的一种新型的型线设计思路与方法,并通过试验以及电厂最近几年的运行情况,说明了用此设计方法设计的阀门型线效果良好,完全满足了锅炉运行要求。
4) lines
型线
1.
This paper introduces the determination of the principal dimensions of the suspend and moter ship of crane load and hydrographic survey for Tongguan in Yellow River ,its lines of flush head,split and shallow tunnelled stern hull form catered for the shallow water and torrential waterway, and the general arrangement to fit in with the need of hydrometry.
介绍了黄河潼关吊机两用水文测量船的主要参数确定 ,适应黄河浅水、急流航区的平头双尾浅隧道型线和适应水文测量工作要求的总布
2.
Considered some actual conditions that the AutoCAD is popularly used in small and middle ship yards, the characteristics lines of fishing vessels are described, and the mathematical equations are established.
从中小船厂应用AutoCAD的实际情况出发,阐述了渔船型线的特点及其数学型线的建立方法。
5) hull lines
型线
1.
Then computer programs for the generation of submarine hull lines based on the data bases of offsets are developed.
介绍了non-un iform rationa l B-sp line(NURBS)用于曲线拟合的方法,具体讨论了如何在给定型值点的条件下反求控制顶点,并在建立潜艇型值数据库的基础上,运用该方法开发了潜艇型线生成的计算机程序,为下一步模拟艇体,计算水动力打下了基础。
2.
Based on the characteristics of hull lines of WPC (Wave Piercing Catamaran), this paper briefly introduces AutoCAD ActiveX technique and the application of its internal objects.
针对穿浪双体船型线的特点,介绍了AutoCADActiveX技术及其内部对象的使用,详细阐述了在AutoCAD2004环境下,利用ActiveX技术进行穿浪双体船型线的自动绘制以及型线三向光顺的关键技术和过程。
6) lines design
型线设计
1.
The factor and the resolution about selection of main dimension and lines design are introduced in this paper.
本文介绍了7000 DWT成品油船主尺度的选择以及型线设计过程中考虑的一些要素及处理方法,并通过对船模试验结果的分析,并与其他同型船比较,从而判别本船型线设计的优劣。
2.
The paper gives a short introduction to the lines design and structural design of a newly developed 35000DWT products tanker.
本文主要介绍了 ３５ ０００ Ｄ Ｗ Ｔ 成品油船的型线设计和结构设计。
3.
The shipform selection and lines design, as well as model test for a cable delivering boat shallows of Three Gorges are presented.
阐述三峡绞滩递缆船的船型选择、型线设计和船模试验研究，给出了较高傅氏数 （Ｆｒ＞ ０。
参考词条
补充资料：凹线
凹线 明式家具常用的线脚之一，是指凹入平面的一种线形。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。