三角

Weifang City, Shandong Province Ming Rubber Factory is the Ministry of Chemical Industry V-belt, rubber production of one of the key enterprises, mainly produces the "power" brand V-belt,"Shengyuan" card buried suction hose.

山东省潍坊市新铭橡胶厂是化工部三角带、橡胶管生产重点企业之一，主要生产&生力&牌三角带，&盛源&牌埋吸胶管。

Based on the above-mentioned characters, this paper analyzes and improves the building method of non-restraint triangulated irregular network and the embedded approach of constraint conditions, provides a kind of computational method which is used to compute the strip mine earthwork calculation based on constrained triangulated irregular network. a experiment system, which auto-complete the update of the strip mine relief map and earthwork calculation with the discrete elevation point, is developed by using the VBA development tool of AutoCAD.

基于上述特点，本文主要分析并改进了无约束三角网建立的方法与约束条件的嵌入方法，研究了基于带约束条件的不规则三角网的露天矿采剥土方量的计算方法，并利用了AutoCAD内嵌的VBA开发工具，实现了一个以离散的高程点为数据，自动完成露天矿地形图更新绘制与土方量计算的实验系统。

The focus is Short-term holiday leisure tour composed mainly of Triangle Hill Tour, here is the elaborate circuit: Liangong Platform - Chessboard Stone - Savage Valley - Intelligent and Beautiful Hometown- Gold Side Stream - Ziyun Temple - Major Peak of Triangle Hill etc.

三角山自然资源良好，这里适合武汉市民在此度假、休闲、娱乐活动，希望三角山能成为武汉的后花园而努力。

The mixing power and circulation characteristics of Newtonian fluid and pseudoplastic fluid were measured in a φ300mm organic glass vessel,by using anchor and tri-leaf impeller,anchor and inner-outer screw,orthogonal twi-stratm triangle blades and single screw,orthogonal twi-stratum triangle blades and inner-outer screw types of combined agitators.

为使聚合釜内搅拌介质在湍流、过渡流及层流域都能达到良好的混合，对锚－三叶推进器、锚－内外单螺带、正交双层三角桨－单螺带、正交双层三角桨－内外单螺带等4种组合桨搅拌器，于φ300mm的有机玻璃釜中，测定了在牛顿流体和假塑性流体中的搅拌功率和循环特性。

Under certain ratio of signal-to-noise and through the computer simulations and calculations, the performances in Mbius digital base band communication system of five often used modem function set, those are the even and odd symmetrical triangle wave, even and odd symmetrical square wave and saw-tooth wave and their inverse transforms, are simulated 10000 times, and the fluctuation ranges of the error rate P(subscript b are observed.

在一定信噪比的前提下，通过计算机仿真和编程计算，对Mbius数字基带通信系统中偶对称三角波、奇对称三角波、偶对称方波、奇对称方波和锯齿波这5种常用的调制解调函数族及其逆变换进行仿真1万次，观察错误概率P

Bius digital base band communication system of five often used modem function set, those are the even and odd symmetrical triangle wave, even and odd symmetrical square wave and saw-tooth wave and their inverse transforms, are simulated 10000 times, and the fluctuation ranges of the error rate P(subscript b are observed.

bius数字基带通信系统中偶对称三角波、奇对称三角波、偶对称方波、奇对称方波和锯齿波这5种常用的调制解调函数族及其逆变换进行仿真1万次，观察错误概率P

In addition, the Chinese CRT TV screen points of light, depending on the magnetic field changes in the tilt, So with the need to control the current ramp, triangle wave, This is the same square wave can not ignore the role of function generator is generally automatically generate square wave, sine wave, saw tooth wave and triangular wave, etc. ladder circuit voltage waveform or equipment.

此外，如在电视机中显像管荧光屏上的光点，是靠磁场变化进行偏转的，所以需要要用锯齿波电流来控制，对于三角波，方波同样有这不可忽视的作用而函数发生器是指一般能自动产生方波、正弦波、三角波以及锯齿波阶梯波等电压波形的电路或仪器。

On the geometric modeling, flat surface and curved surface are used to mesh and describe the model;on the electromagnetic modeling. Different basis functions( flat surface roof-top basis function, flat surface RWG basis function, curved surface roof-top basis function, curved surface RWG basis function) and different test functions (line-matching, Galerkin method) are applied to different cells(plat rectangle facet, triangular patch, Bezier patch, parametric surface, curved triangular patch etc.).

在几何建模方面，分别采用平面元和曲面元对模型进行了剖分和拟合；在电磁建模方面，针对不同的单元(平面元、平面三角元，、Bezier元、参数曲面、曲面三角元等)采用不同的基函数(平面roof-top基，平面RWG基，曲面roof-top基，曲面RWG基)和不同的检验函数进行处理。

Compared with a delta wing aircraft, the double delta wing configuration has better aerodynamic performance at high angles of attack.

双三角翼气动布局比三角翼飞机具有更好的大攻角空气动力特性。

The effect of Gurney flap on double delta wing aerodynamics was conducted in low speed wind tunnel,the experimental results indicated that Gurney flap can promote the model s lift coefficient,maximum lift coefficient and lift-to-drag ratio at middle to high lift coefficient.

通过低速风洞实验研究了Gurney襟翼对双三角翼气动特性的影响，结果表明Gurney襟翼可以提高双三角翼的升力系数、最大升力系数以及中高升力系数情况下的升阻比。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。