,we know that a curve lies in a plane if its position vector lies in its osculating plane at each point, and lies on a sphere if its position vector lies in its normal plane at each point;In this paper,we mainly discuss the rectifying curves in three dimensional Minkowski space.
本文给出了三维M inkowsk i空间中一种新类型的曲线———从切曲线,它的位置向量总是位于它的从切平面上。
The main purpose of this thesis is to investigate the quasi-rectifying curves inMinkowski space, classify the limit points of complex hyperbolic isometry groupsand compare with the case in real hyperbolic spaceand and discuss the monotonic-ity and logarithmic convexity of a function involving the gamma function.
本文主要研究了Minkowski空间中的拟从切曲线,对复双曲等距群的极限点进行分类,同时与实双曲空间进行了比较,且讨论了有关伽玛函数的单调性与对数凹凸性。
High Precision Linear Cutting of Extra Long Aluminum Honeycomb Sandwich Plates
超长铝蜂窝夹层板的高精度直线切割
Linear cutter-assisted splenectomy for traumatic spleen rupture
直线切割缝合器行二级脾蒂离断术在创伤性脾破裂脾切除术中的应用
A Basic Study on the Relation between Wire Diameter and Wafer Warp
多线切割工艺中切割线直径对翘曲度影响的研究
Study on WEDM Technology of Straight Generatrix Surface;
空间直纹曲面电火花线切割加工技术的研究
Research on the Design of Micro-gear Driving-oriented Wire Cutting
面向线切割的微小直齿圆柱齿轮传动设计研究
a section created by a plane cutting a solid perpendicular to its longest axis.
由一平面横切某物，通常与轴线成直角切割形成的断面。
tangental point of a cubic
三次曲线的切线割点
hot-wire cutting
(平板玻璃的)热金属丝切割法，火线切割
Straighten out the material before cutting it.
在切割前先将材料弄直。
The Research of Multi-Wire-Saw Technology and Characteristic of Suspending Liquid in Slicing Super Thin Solar Wafers;
超薄大直径太阳能级硅片线切割工艺及其悬浮液特性研究
The Process Study on the Machining of High-precision Deep Hole with Small Diameter by WEDM-LS
慢走丝线切割加工高精度小直径深孔的工艺研究
NC EDM wire-cut machine
电火花数控线切割机床
NC wirecut EDM machine
数控电火花线切割机床
working liquid for water-based wirecutting machine
水基线切割机工作液
taper wire-cut EDM machine
锥度电火花线切割机床
super CNC wirecutting machine
电火花数控线切割机
wire cut microcomputer control system
线切割微机控制系统
A Comparsion of Curved Cutter Stapler and Straight Cutter Stapler for Anterior Resection in Low Rectal Carcinoma
弧形切割吻合器和直线型闭合器在低位直肠癌前切除术中应用的比较研究