双像

An experiment on near threshold double ionization of helium impacted with 106 eV electron has been performed by using the newest developed reaction microscope. In this experiment the momenta of all products after double ionization of helium were measured and the five fold differential cross section was obtained for emitted electrons.

利用最新发展起来的适用于低能电子入射的反应显微成像谱仪，对电子轰击He原子近阈值的双电离过程进行了研究，实验测量了反应后4个粒子的全部动量，获得了五重微分截面及出射粒子间的关联信息。

Based on the theory of light propagation and diffraction characteristics of grating, the optical energy transfer of bi-grating imaging system is studied and the expression for the intensity of combined beams is given.

从光传播基本理论和光栅衍射性质出发，研究了双光栅成像效应中的光能量传递，得到了确定汇合级光强的表达式。

Gastaldi and co-workers have observed two types of contrasts in Al-Pd-Mn IQCs: black-white double-lobe and loop-shaped, by using X-ray topography, and the facetted dodecahedral pores by phase-sensitive radiography.

Gastaldi领导的小组在结合利用X射线形貌术以及相位敏感成像术研究Al-Pd-Mn二十面体准晶单晶中的缺陷时发现两种衬度，其中已知黑白双瓣衬度是由于准晶中的五角十二面体空洞引起，而对于环形衬度则除了知道退火行为不同于位错从而不太可能是位错圈外，基本上对其缺陷的几何及性质不甚了解。

Like Double Cross Lacing , this method is also created by running three steps forward, one step back.

像双十字拉筋，这种方法也通过运行三步走创建，后退一步。

Substitute teacher is our primary school principals, he is a very old man's Bugouyanxiao that he had a double eagle eye, often on the natural course of my time on the very nature, I do not like this so I stifled the atmosphere, there is a very old man in particular Habits, with his glasses, I do not know if the old flowers or short-sighted glasses, not all the glasses on the bridge of the nose through the glasses with a man he did not, his eyes with a sharp nose, the man's time Head, above the framed glasses from the preview, this action has been very much afraid of me, the more quiet at a time when I knew that he would not issue a noise, and then the eagle eyes of my immediate aim, and then we all turned to see me ...... And for a long time ago, more and more like I do not like him, and he would seem to have any grudges against me more and more quickly verify my guess.

代课老师是我们的小学校长，他是一个很不苟言笑的老头子，他有一双鹰的眼睛，每每上自然课的时候我就很不自然，我不喜欢这个让我窒息的气氛，老头子有一个很特别的习惯，他带着的眼镜，不知道是老花还是近视的眼镜，不像大家把眼镜带着鼻梁上透过眼镜看人，他不，他把眼睛带着鼻子尖上，看人的时候低着头，从眼镜框子的上面瞄，这样的动作让我一直很惧怕，越在安静的时候我会发出不自知的噪音，然后鹰的眼睛马上就瞄准了我，然后大家都会扭头看我……久而之久，我好像越来越不喜欢他，他也好像也越来越跟我有仇，很快就验证了我的猜想。

The slit grating is the parallel arrangement of equal width light blocking stripes. In the preset optimal view plane, the double micro polarizing structure has no superposing of the right and left images, resulting in greatly improved stereo image quality.

本发明公开的一种新的立体成像装置及其方法，其双微偏振结构在预先设计的最佳观看平面处，不存在左右图像的重叠，因此不会出现串影现象，从而大大改善了立体图像显示的质量。

Liu Jie occasions when a low heat, B Super Show hepatomegaly, spleen no abnormal chest film images show that under the double pneumonia change, blood eosinophil show the first normal, the second high, comprehensive diagnosis of bronchial pneumonia.

刘洁入院时有低热，B超显示肝肿大，脾未见异常，胸片的影像显示双下肺炎变，血像显示嗜酸性细胞第一次正常、第二次偏高，综合诊断为支气管肺炎。

Birefringence, or double refraction, is the decomposition of a ray of light into two rays (the ordinary ray and the extraordinary ray) when it passes through certain types of ma ...

光在晶体中传播时，再不平行于光轴方向上，由于e光和o光传播速度不同，而出现两个不同折射率的光的像，这种现象叫做双折射现象。

ABSTRACT Objective: To discuss the performance of Magnetic Resonance with FLAIR Pulse Sequence and the T2WI Weighting Image in the patients with acute cerebral infarction, and analyze the sensitivity of MRI with double sequence in the acute cerebral infarction.

目的：探讨急性脑梗塞在磁共振液体衰减翻转回复序列与常规SE序列T2WI加权像上的表现，并对比分析双序列在急性脑梗塞MR诊断的敏感性。

The theory warrant is found, that how it can explanation the self-imaging phenomenon using Yang′s double slit interference.

对于周期物的Talbot效应，得到了用杨氏双缝干涉解释自成像现象的理论依据。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。