查询词典 substraction

We compared magnetic resonance angiography and intra-arterial digital substraction anglography in 20 cases with intracranial aneurysms.

对经手术证实的20例脑动脉瘤的MRA和IA－DSA的影像进行了对照分析研究，经MRA检出19例（95％）动脉瘤，9例为10mm以下的动脉瘤，最小的4mm，与DSA检出率（19／20）相仿。

Objective: To evaluate the technique of improving the image quality of DSA （Digital substraction angiography） in animal experiment and enhance the veracity of the experiment and its persuasion.

目的：探讨提高动物实验中数字减影血管造影图像质量的技术，以提高实验的准确性和说服力。

Digital substraction angiography was performed 1 and 4 weeks after operation to observe the vessel changes, and then all canines were sacrificed for histological examination.

术后1周和4周行数字减影血管造影观察血管情况；4周后处死动物，行溃疡周围组织学检查。

For each image sequence, an improved background substraction algorithm and distance transform are first used to segment the action sequence.

本文提出一种基于统计主成份分析和行为序列匹配的人的行为识别算法，对于输入序列采用改进的背景减法获取人体侧影并归一化，对归一化的人体侧影进行距离变换。

PURPOSE: To summarize the clinical imaging features of color Doppler flow imaging, digital substraction angiography in diagnosis and differential diagnosis between carotid body tumor and neurilemmoma.

目的：总结彩色超声多普勒与数字减影血管造影在颈动脉体瘤与神经鞘瘤诊断与鉴别诊断中的影像学特征。

An efficient PCR-based cDNA substraction method was employed for the isolation of the salt-stressed responsive ESTs.

运用一种高效的以PCR技术为基础的cDNA消减杂交方法构建了鲁氏酵母的盐胁迫应答差异表达ESTs文库。

The available image is found by template matching in original bill image. After the elimination of noise by filter, the image substraction is used to detecting the existence of template in available image.

在原始票据图象上利用模板匹配先得到相应的有效图象，再运用差影技术对滤波去噪后的有效图象进行模板存在与否的检测。

Methods The data of 94 patients with SAH confirmed by head CT were analyzed. All the patients underwent digital substraction angiographyof whole cerebral vessels.

所有患者均行头颅CT证实为SAH，全部行DSA，对94例SAH患者的临床表现，Hunthess分级，头颅CT、DSA检查等资料进行分析。

It resembles the calculator being used in our daily life,can perform the function: plus, minus,multiply ,divide,serial addition and serial substraction, also can display the computing results correctly!

它类似日常生活中所用的计算器，可实现加，减，乘，除以及连加和连减等功能，并且能正确显示计算结果。

In chapter 3, the heat induced semi-geostrophic motion equations on β-plane, proper heating parameterizational schedules and standard atmosphere substraction technique are introduced to establish a model.

第三章是本文的核心部分。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。