In this paper,we proved that the cubic system can not exist three separatrix cycles of the tri - curve x3 - 3xy2 - 1 = 0.
本文证明了三次系统不可能同时存在三个三曲线ｘ３－３ｘｙ２－１＝０分界线环。
We obtain a necessary and sufficient condition for the existence of a type of quarticcurve separatrix cycles in the quadratic system.
本义给出了二次系统存在一类四次曲线分界线环的充要条件，此类分界线环的方程为（ｙ＋ｃｘ￣２）－ｘ￣２（ｘ－ａ）（ｘ－ｂ）＝０。
This conclusion corrects a mistaken result(In the planar quadratic system there is not cubic algebraical saddle-nodeseparatrix-loop,in which the author asserrts that quadratic system has no the cubicalgebraical saddle-node separatrix cycle.
本文证明了平面二次系统的三次代数同宿轨线上可以存在鞍结点，并且二次系统可以存在含鞍结点的无返回映射三次曲线分界线环。
A interpolation algorithm for saddle-shaped curve auto-welding based on angle approaching;
基于角度逼近的马鞍形曲线自动焊接插补算法
The principle,system structure,interpolation algorithm and its simulation of an automatic welding system for saddle-shaped curve were introduced.
介绍了一种马鞍形曲线自动焊接系统的工作原理、系统结构、插补算法和仿真结果。
A necessary and sufficient condition of the existence of the two angle hyperbolic separatrix cycles for the cubic system E_3~1;
三次系统E_3~1存在二角形双曲线分界线环的充要条件
Four-axis interpolation algorithm for automatic welding of saddle type curve weld
马鞍形曲线自动焊接四轴联动插补算法
Research and Development of CNC System for Welding Torch Pose Control in Saddle-shaped Seam Welding
马鞍型曲线焊枪位姿数控系统的研究与开发
Countermeasures for Changing the Saddle-Shape Distribution of Chinas Sport Population;
改变我国体育人口“马鞍形”分布的对策
Discussing the Shape of Hyperbolic Paraboloid byMeansofMATLAB;
用MATLAB软件讨论马鞍面的形状
Pommelled horse
GB/T8394-1987鞍马
The Experimental Research of the Saddle Workpiece by Multi-Point Sandwich Forming;
马鞍形板料件多点“三明治”成形的实验研究
a high pommel of a saddle.
一个很高的马鞍前鞍。
Forming a curved configuration.
成曲线形的，弯曲的
HPMC showed 'saddle' shape with cervical region, those from C 5 to L 5 showed gradual increase downward, and there were a clear regularity on the width and height with WPC, WPMC, HPC and HPMC;
髓腔高值颈段呈“马鞍”形 ,从C5～L5则有渐增大趋势 ;
Without any railing, both sides of the bridge caved downward in the shape of a long, thin saddle.
那桥没有栏杆，两边向下塌，是瘦长的马鞍形。
Deformation Analysis of Soft Soil Sub-grade on Maanshan-Wuhu Expressway;
马鞍山—芜湖高速公路软土路基变形分析
An Analysis on the Saddle Phenomenon of the Participation in Mass Sport;
对我国大众体育发展呈“马鞍形”现象的思考
Drawing Analysis and Process Optimization of Half Saddle-shaped Left/Right Wheel House
半马鞍型左右轮罩板成形分析及工艺优化
Numerical simulation on the process of saddle surface multi-step multi-point die forming
马鞍面件多道次多点模具成形数值模拟
a saddle having a steel cantle and pommel and no horn.
有钢制鞍尾和前鞍而没有角的马鞍。
gamma ray correction
自然伽马测井曲线校正
he will not bear it."
这马不肯受鞍子。”
