分辨

ABSTRACT A systematic introduction about the background of both the radar target identification and the high-resolution parametric estimation techniques is presented in this dissertation firstly.

本文首先系统介绍了国内外学术界关于雷达目标识别和基于累量的高分辨参数估计方法的研究现状。

From this point, we can tell the function of the part of the speech in sentences very clearly.

由这点来看，也可以很清楚的分辨出这个词类的在句子当中所具有的功能。

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。

These then disappeared leaving a thin film:....a scarcely perceptible film or pellicle, as thin as a cobwed, which was still changing colors, but soon dried up and vanished.

然后这些消失变薄了：。。。。简直难以分辨是薄片或薄膜，如牛奶皮一样薄，仍然在变换颜色，但是很快干缩和消失不见了。

For that which makes no perceptible difference by its presence or absence is no real part of the whole.

因此，感知不能分辨其存在与否的事件并非整体真正的组成部分。

The theory of spatial resolution of two phot on excitation is analyzed.

对双光子过程的空间分辨能力进行了理论分析。

Time-resolved laser flash photolysis is a new technique used to investigate the transient species of photochemistry systems at room temperature and has been applied in different research fields.

时间分辨的激光闪光光解装置是为了在室温下鉴别光化学体系中存在的活泼中间体而形成的一种技术，已经被广泛地应用于各个领域。

The expressions of the number of cycles in one photocurrent burst from the scattering light at different positions were shown.

对激光扫描测速技术中影响扫描频率提高的因素以及影响扫描范围、空间分辨率、空间分辨点数的因素做了分析和讨论。

The interaction between LiF and Al has been studied by X-ray photoemission spectroscopy and high-resolution electron energy loss spectroscopy.

利用X光电子能谱和高分辨电子能量损失谱研究了几种条件下LiF和Al的化学反应。

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。