二维的

It is to develop a fast algorithm for 2-D S-velocity analysis using the idea of parsimonious migration and model-based velocity analysis.

本 研究是以parsimonious migration 和model-based 速分析法为基础，发展快速的二维S 波速分析演算法。

Methods: Antineoplastic compounds were screened by bioassay-guided method with partitive extraction and multiple column chromatographies(Sephadex LH-20, ODS and preparative HPLC). Structures of active compounds were determined by high-resolution 2D NMR(600 MHz) and ESI-MS techniques.

通过分级萃取和多种硅胶柱层析（Sephadex LH-20凝胶过滤、ODS反相层析和HPLC）追踪分离抗癌活性成分；利用电喷雾离子质谱和高分辨(600 MHz)核磁共振二维谱技术鉴定化合物的结构。

Methods: Antineoplastic compounds were screened by bioassay-guided method with partitive extraction and multiple column chromatographies(Sephadex LH-20,ODS and preparative HPLC).

通过分级萃取和多种硅胶柱层析(Sephadex LH-20凝胶过滤、ODS反相层析和HPLC)追踪分离抗癌活性成分；利用电喷雾离子质谱和高分辨(600 MHz)核磁共振二维谱技术鉴定化合物的结构。

The final it's surely to develop three-dimensional Element's Solid Periodic Law from plane to space.

传统二维空间的门氏元素周期律也有其不足之处，是元素平面周期律。

Using the periodic orbit theory, we computed the quantum level density of a particle in the two-dimensional harmonic oscillator potential with and without the magnetic flux line for different cases.

利用周期轨道理论，我们计算了在不同情况下，一个粒子在二维谐振子势中存在和不存在磁通量时的量子能级密度。

Objective: To discuss statistical analysis of planar data in surveillance.

目的：探讨监测资料中常见二维数据的统计分析方法。

Surface plasmon resonances of two-dimensional gold nanoparticles under the electrical dipole source and plane electromagnetic wave(magnetic polarized in z-direction) are investigated.

根据Maxwell电磁理论，探讨无限域中二维细杆形金奈米粒子受到磁场在轴方向极化之平面电磁波与电偶极波源所造成的表面电浆子现象。

The plane wave expansion method is used to calculate photonic band gaps for one dimensional and two dimensional structures.

我们使用平面波展开法，分别计算一维和二维光子晶体的能带结构。

Research on deep anti-sliding stability and reinforcement of entirety polygonal line gravity dam;2. The 2D Elastoplastic Finite Difference Method is adopted to analyze the deep anti-sliding stability for the dam foundation of Longkou hydropower station factory dam.

采用二维有限差分程序对龙口水利枢纽混凝土重力坝厂房坝段进行深层抗滑稳定分析，采用强度折减方法，根据特征点位移突变临界破坏判据和止水帷幕部位夹层错动量达到1mm临界破坏判据分别得出了厂房坝段的两个深层抗滑稳定安全系数。

By caculating, we can arrive at the relationship of the power law exponent between the traditional DFA and the 2-dimentional space.

通过计算，得出了二维DFA幂律指数间的内在关系。

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。