查询词典 two dimensional

A vertical fractured well can bring out two-dimensional flow in the direction of normals of developing ellipse — conjugate ellipse isobar and hyperbola streamline bunches with the two ends of the fracture as their focuses.

垂直裂缝井采液时诱发地层中的平面二维椭圆渗流，形成以裂缝端点为焦点的共轭等压椭圆和双曲线流线族。

Two-dimensional statistically non-sparse decomposition principle (2d-SNSDP) is proposed for two observed signals in this paper.

本文针对两个观测信号的情形，提出了二维的统计非稀疏准则

Two-dimensional Bernstein type operators on simplex are constructed, and a necessary and sufficient condition of uniform approximation by mem is obtained, at the same time, the degree of approximation is characterized by two-order moduli of smoothness.

并且构造出单纯形上推广的二元Bernstein型算子，给出其一致收敛的一个充要条件，同时用二阶连续模刻划了它们的逼近度性质。

The left ventricular internal dimension at end diastole, interventricular septal thickness at end diastole and left ventricular posterior wall thickness at end diastole were measured in the parastemal long axis view by transthoracic two-dimensional echocardiography, and to calculate left ventricular ejection fraction with Teichholtz formula and left ventricular mass with modified Devereux formula, left ventricular mass index=LVM/body surface area. From the apical four chamber and two chamber view, the basical segment and middle segment of interventricular septal, left ventricular lateral wall, anterior wall and inferior wall were obtained by tissue Doppler imaging, Regional left ventricular relaxation asynchrony index was calculated.

应用二维超声心动图在胸骨旁左心室长轴观测量左心室舒张末期内径、室间隔和左心室后壁舒张末期厚度，采用Teichholtz公式计算左心室射血分数，采用Devereux校正公式计算左心室心肌质量，左心室心肌质量指数=左心室心肌质量/体表面积；在心尖四腔心和心尖两腔心切面，应用组织多普勒成像获取室间隔、左心室侧壁、前壁和下壁的基底段和中间段8个心肌节段沿左心室长轴运动的速度频谱，测算左心室局部心肌松弛不同步性指数(regional left ventricular relaxation asynchrony index， AI)；在心尖四腔心切面，应用彩色M型多普勒超声心动图测量左心室舒张早期血流传播速度。

In this paper,two high resolution explicit schemes are given by interpolation based on different pyramidal stencil for the nonlinear advection equation in two dimensional space.

文章基于金字塔网格，采用插值的方法，构造了2个二维对流方程的二阶显式格式，并给出了一个判断准则。

In thisdissertation,two subjects,which are elastic wave scattering of multiple interfacecylindrical cracks and elastic wave identification method of two dimensional flaw,are mainly investigated.

本文主要针对以下两个方面的问题进行了研究，其一是多个纵向环形界面裂纹的弹性波散射，其二是二维缺陷的弹性波识别方法。

A experimental measuring system of double-illuminator method was used in order to study the history of collapse parameters include two dimensional Lagrange velocity and Taylor angle about two type of spherical liners. The final velocity,final Taylor angle and characteristic time of specified particles on inner wall of liners were measured .

文中应用二维拉氏速度光学测量技术，测得两种球缺形药型罩在炸药驱动下内壁给定位置的运动参数变化历程，包括速度和台劳角变化历程，并得出其极限速度、特征加速时间和极限台劳角。

This paper studies the classification of two-dimensional representations of free group and free semigroup with two generators over arbitrary field, especially over finite field.

本文研究具两个生成元的自由群和自由半群在任意域，特别是在有限域上的二维表示的分类问题。

An all-optical half adder based on two different cross structures in two-dimensional photonic crystals was proposed. One cross structure contains nonlinear materials and functions as an "AND" logic gate.

提出了基于两种二维光子晶体"十字"逻辑门的全光半加器，其中一种"十字"结构含有非线性介质，起"与"作用，另一"十字"结构不含非线性介质，起"异或"作用。

These range from a simple two-dimensional box where a click at any point defines the values for two input mechanisms (the vertical and horizontal coordinates each drive the value of a parameter), to more complex direct manipulation interfaces (see Figure 21-18 for examples).

比如在一个简单的二维框内单击一次便可以进行两次输入的机制（水平和垂直坐标决定输入的数值），还有较为复杂的直接操作界面（参见图21-18）。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。