查询词典 asymptotic curve

The curve, to be calledλ-Bezier curve not only inherits themost properties of n-degree Bezier curve, such as endpoints properties, symmetry,convex hull property, geometric invariability, affine invariance, convex-preservingproperty, variation diminishing property and so on, but also can be adjusted inshape by changing the value ofλwithout changement of control points.

曲线不仅具有n次Bézier曲线的特性：如端点插值、端边相切、凸包性、变差缩减性、保凸性等，而且具有形状的可调性：在控制顶点不变的情况下，随着参数不同，可产生不同逼近控制多边形的曲线。

First,a proposition is presented:for a general kind of biobjective deci-sionmaking problemin real linear topological space satisfyiny someuniversal convexity assumpltions,the Pareto frontier is a piece-wise smoothconvex curve,each piece being either a Ⅰ-curve or a Ⅱ-curve.

对于满足一般凸性假设的实线性拓扑空间上的双目标决策问题，本文提出了"其非劣前沿为分段光滑的凸曲线，每一段要么是工型弧线，要么是直型弧线"的观点，据此详细研究了决策人的偏好与加权和问题之间的关系，提出了4种对话式决策方法，这些方法既适用于一类静态双目标决策问题，又可适用于一类双目标控制问题。

The trigonometric uniform polynomial curve constructed in this paper has two advantages. One is that the curve can be continuous and the shape can be adjusted with the fixed tangents. The other is that only adding one new knot, the curve can pass through the tangent, which reduces excess points.

利用绘出的三角均匀多项式曲线来逼近多边形，主要有2个特点：一是曲线能达到连续，并且在切点固定时曲线的形状可以进行调整，二是只需增加一个新节点就可以通过切点，减少了额外点。

As an example to cubic trigonometric polynomial Bézier,the characters of trigonometric polynomial Bézier curve is analyzed,and deduced that cubic trigonometric polynomial Bézier curve is more smooth than cubic polynomial Bézier curve.

Bézier曲线是计算机辅助几何设计中的一类重要曲线，文献[1]介绍了三次Bézier曲线插值，文献[2]介绍了三次Bézier曲线的保凸插值，但难以解决一端曲率为0，另一端曲率比较大的插值问题。

This paper narrates the theory method to determine measuring point s in the ubiety of center of road of first easement curve segment,circle curve segment and second easement curve segment,gives the source program of PC-E500 computer and explains data format in it.

讲述判定测点在道路中线第一缓和曲线段、圆曲线段、第二缓和曲线段的位置关系的理论方法，给出相应的PC-E500源程序，并对数据格式进行说明。

; 3 younger Dryas Only has reflection in the hundred-year-scales climatic curve, it is not evident in the curve of long period; 4 in the hundred-year-scales climatic curve, the last glacial maximum fluctuation as frequuently and 18-28KaBP was the stage in which the frequency fluctuation was the largest.

；（3）新仙女木事件仅反映在百年尺度的气候曲线上，在较长周期的饿曲线上不明显；（4）在百年尺度的气候曲线中，末次冰盛期气候波动频繁，其中18-28KaBP 是频率波动的最大阶段，但随着周期尺度的加大，气候的波动频率逐渐趋于均匀。

Firstly, we put forward twoways to reconstruct the correlation curve accordingto whether the changed correlation peak. After analyzing the character of the correlation curve,we find the method to judge whether the peak is excurved. Secondly, the confirmation of thecomplex signal and difference value curve, according to the present optimized arithmetics.

一是针对复合信号相对直达信号的相关曲线峰值是否偏移提出的两种不同重构相关曲线方法，分析其相关曲线特点，提出判断其峰值是否偏移的标准；二是复合信号相关曲线与差值曲线的峰值的确定，本文根据目前的最优算法，有针对性的提出分别由模拟退火与遗传算法解决此问题的原理、思路、方法、实现步骤、程序与判断正确性的仿真验证。

Involute curve and spiral curve are driven by filar involute function equation and spiral curve equation respectively and main dimensions of the model are controlled by the relation.

利用渐开线方程和螺旋线方程驱动生成渐开线和螺旋线，同时又对模型主要尺寸通过关系式进行控制。

In the long time creep tests, by regressive analyses, the creep curve of glauberite at different stress level is obtained: at 50% of its compressive strength, the creep curve is ε 0.009t0.3265, at 80% of compressive strength, the creep curve is ε=0.0098ln-0.0014. It is clear from the creep curves of the rock mass, that the creep rate at high stress level is higher than that at the lower stress level.

通过长时间的蠕变实验，回归出钙芒硝盐岩蠕变在不同应力水平下随时间变化的曲线，其抗压强度50%时的曲线方程为ε=0.0098ln-0.0014，抗压强度80%时的蠕变曲线方程为ε=0.012ln-0.0056，应力水平高时其蠕变速率高于低应力水平的蠕变速率。

Results showed diural variations of leaf Pn displayed bipeaked curve model, indicating the depression of photosynthesis at noon. Leaf Pn rate in June was higher than in September; Compared to leaf Pn, Cs had a similar changing curve, Cs in June was higher than in September. While diural variations of intercellular CO2 concentration were opposite to that of leaf Pn and Cs, decreased before 1200,increased after 1200, decreased again at 1600,after 1600 increased again; diural variations of climatic factors displayed single peaked curve model, peakedvalue occurred at 1400,and their influences on physiological factors were indirected and integrated.

结果表明，光合速率的日变化具有双峰型，存在光合午休现象，6月的光合速率高于9月；沙棘的气孔导度较低，其日变化与光合速率有相似的变化趋势，6月的气孔导度大于9月；细胞间CO2浓度的日变化与光合速率和气孔导度的日变化相反，1200之前下降，之后上升，1600下降，然后上升；气象因子的日变化具有单峰型，峰值1400出现，对生理因子的影响是间接且综合的。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。