成束的

Objective To investigate the characteristics of fractional anisotropy and apparent diffusion coefficient of association fiber tracts in patients with amnestic mild cognitive impairment, and to assess the application value of diffusion tensor imaging in differential diagnosis of aMCI and AD.

目的 通过磁共振扩散张量成像探讨遗忘型轻度认知障碍患者联合纤维束FA值和ADC值的变化特点，评价DTI对aMCI的诊断及aMCI与AD鉴别诊断的应用价值。

One slightly concave cylindrical lens combination is used to change one laser beam into small sector in small angle, and one reflector projects the laser beam to prism driven by a motor to rotate in high speed to produce one reciprocating and scanning small sector plane.

采用微凹柱面透镜组将激光光源发射的一束激光拉成具有微小夹角的小扇面，利用反射镜将此激光束透射到由电机驱动的高速旋转多面棱体上，使激光束产生一个小扇形往复激光扫描光平面。

The configurational unit of this system was the filament or filament band. Filament averages about 10nm in diameter.

构成此体系的基本形态单元是直径约10nm的单根纤维或由单根纤维合并成的纤维束。

The adsorption state and the formation of J-aggregate of the cyanine dye adsorbed on AgCl nanoparticles with different diameter are also discussed.

讨论了不同粒径的AgCl纳米粒子对反胶束体系中菁染料的吸附状态及J-聚集体形成的影响。

The spectra of stars and galaxies almost always show a series of discrete lines that form when certain atoms or molecules emit or absorb light.

星体和星系的光谱几乎总是表现出一束不连续的线，这些线形成于某些原子或分子发射或吸收的光线。

But since understanding of any operation should be achieved before it is carried out, just as you should be able to see your target before you shoot an arrow or throw a javelin, let us consider, first and primarily, exactly what this bundle that I intend to put together may be.

但是由于对一个行为的理解应该是在它展开之前就实现了的，就如在你射箭或投掷标枪之前就应该能够看清目标一样，让我们首先从根本上思考一下：我想捆绑成的这一束东西到底会是什么。

The obtained results suggest that it is feasible and effective to use Fourier propagator for beam source target-oriented illumination and imaging.

获得的结果表明，结合小束源和Fourier传播子进行面向目标的照明和成像是切实有效的。

In the present work, a theory of multiple bunching including the effect of space-charge is developed through the use of space-charge wave concept.

本文采用空间电荷波的观念，讨论了包括电子相互作用的多次聚束问题。所得结果，在电流接近以零为极限时，简化成费恩柏格E。

Third, the orbital velocity of ocean wave was considered as the basic dynamic factor, and the imaging model calculates the influence on raw data by the wave movement according to the orbital velocity.

研究了海面的电磁波后向散射模型和海浪对SAR信号的调制机理，其中，重点研究了复合表面模型和速度聚束调制机理，在此基础上建立了适合于海面的SAR成像模型。

This congregation had been established in 1499 by Bishop Louis d'Amboise, who, there being no reformed convent in the province of France, obtained from Mantuanus tow religious, one of whom died on the road; the survivor found in the Collège Montaigu in Paris some twenty students willing to embrace the religious life.

这会众已成立于1499年，由主教路易斯-a mboise，世卫组织，如果没有改革，修道院，在该省的法国，索取m antuanus丝束宗教，其中一人死于道路；幸存者发现，在该学院m ontaigu在巴黎约20个学生愿意去拥抱的宗教生活。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。