Objective: to study the theory and the value of direct projection tomography technology.
前言：目的：探讨直接投影断层成像技术的一般原理及其使用价值。
Results: the direct projection tomography machine can display tomography image of the model.
结果：用该直接投影机能显示出模型的断层图像。
The shortest latency of the evoked potential was only 2 ms, indicating that a direct projection from the amygdala to the auditory cortex did exist.
诱发反应的潜伏期最短为2毫秒，表明杏仁向听皮层的投射可能是单突触的。
To improve the realistic effect of smoke simulation, a real time smoke shadow simulation algorithm based on direct projection and diffusion is proposed.
为了提高烟雾模拟的真实感，提出了一种基于直接投射扩散的烟雾阴影实时生成算法。
The results suggest that PVN is one of the major intrabraih nuclei participating in analgesia, it plays its role via PAG of its direct projection to the dorsal horn.
实验结果表明：PVN是脑内镇痛的主要核团之一，其作用通过PAG实现，也可通过PVN—脊髓背角直接投射的途径。
Using HRP labeling techniques, we have demonstrated that there was a direct projection from anterior cingulate cortex to ventrobasal nucleus of the thalamus in the rat brain.
当HRP注入丘脑腹侧基底核时，在同侧扣带回前部观察到标记的细胞，标记细胞密度背侧区比腹侧区高。
The direct projection glare could be reduced through the transmit prism, glass enclosure, and the downward projection light beam is uniform and the luminous surface is large.
透光棱晶玻璃罩可减少直射眩光，下射光线均匀，发光面大。
The common fabrication technologies of binary optical elements were expatiated, including etching, thin-film deposition, direct writing, excimer laser projection and gray-scale masks.
综述了二元光学元件的常用制作工艺技术，包括台阶刻蚀法、薄膜沉积法、直接写入法、准分子激光加工法和灰阶掩模法。
Now the existing direct volume CT methods face two difficulties:first, how to get the projection data to reconstruct the 3D image exactly, including whether the scanning structure is practical;
目前直接体积CT主要存在两大困难：一是如何获得三维图像精确重建所需的投影数据，包括扫描方式的可实现性；
Owing to the increased color dispersion, this bisector effect is more suitable for projection systems than for direct-view displays.
由于色散的增加，等分角效应对于投影系统比对于直视型显示器更为合适。
The laser direct writing(LDW) system SVGLDW 04 with a projection optical system and a spatial light modulator(LCD-SLM) can expose a reduction pattern directly on a photoresist plate.
通过双远心成像光路，激光直写（LDW）系统SVG-LDW04把液晶空间光调制器（LCD-SLM）上的光斑直接成像在光刻胶板上，得到高质量的光斑图形。
A simple and convenient method of drawing indicates oblique plane, direction of projection, is given in this paper, making it more simple and direct as well as speedy to chart.
给出了双斜平面的一种简便的图示方法——“斜投影法”，使作图更加简捷、迅速。
A simple and convenient method of drawing indicates oblique plane, direction of projection, is given in this paper, making it more simple and direct as well as speedy to chart.
给出了双斜平面的一种简便的图示方法——“斜投影法”，使作图更加简捷、迅速。
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