成束的

Results Spatial relations of the tumors to the lamina terminalis, anterior commissure and anterior communicating artery complex were clearly shown in T2R images. The optic nerves, optic chiasm and optic tracts were detected in 93.3%, 100% and 86.7% of the patients on T2R images and 66.7%, 93.3% and 66.7% on T1 weighted images, respectively. Detection rate of optic pathway on T2R images was higher than that on T1 weighted images.

结果 重T2加权灰阶反转成像可清晰显示肿瘤与终板、前连合及前交通动脉丛的空间关系；其视神经、视交叉和视束的检测率分别为93.3%、100%和86.7%，而在T1加权成像中则分别为66.7%、93.3%和66.7%，前者对视路的检测率显著性高于后者。

Therefore this imaging system can realize two kinds of X-ray radiology: reverse geometry X-ray and X-Scan imaging, and several CT scanning methods, such as equiangular fan-beam CT, equispatial fan-beam CT, helical/spiral CT, cone-beam CT with circle orbit, cone-beam CT with circle-plus-line orbit.

这样就可以实现倒置结构的X射线成像方法、等角扇束的扫描方法，以及本文所提出的凹面源加点探测器的锥形束扫描方法，而且还避免了使用成组点探测器带来的性能不一致性。

The dissertation mainly studied the key techniques which are the mathematics modeling of cone-beam CT simulation system, and the parallel rapid simulation of the projection imaging with STL phantom models. Then a cone-beam CT simulation system platform was developed, which provided the projection simulation for compounding phantoms, non-point X-ray source and multiple X-ray spectrums.

本文重点研究了锥束CT仿真系统的数学建模、STL样本模型投影成像的并行快速仿真等关键技术，开发构建了一个支持混合样本、非点光源与多光谱投影仿真的锥束CT仿真系统平台。

In the leaves of Liriodendroideae, some of the abaxial epidermal cells are papillose and the vascular tissue of the main vein appears to be separated. However, papillose were not found and there are uniseriate, multicellular or unicellular hairs distributed on the epidermis, and the vascular tissue of the main vein appears to be continuous in the leaves of Magnolioideae. Furthermore, in the Magnolioideae, the structure of the leaves of plants in Manglietia are different from that of Magnolia.

结果表明：鹅掌楸亚科和木兰亚科在叶的结构上的主要区别是鹅掌楸亚科两种植物叶的部分下表皮细胞呈乳突状，且整个细胞外壁只形成一个乳突，而在木兰亚科的植物中有单列多细胞或单细胞的表皮毛，未发现乳突；鹅掌楸亚科植物的叶主脉维管组织环分隔呈束状，且其外包被的纤维也排列成束状，而木兰亚科的80种1亚种植物中，叶主脉维管组织连成轮状，其外面也由一圈连续的纤维环所包围。

After electroreduction of ZME loaded Hg, metallic mercury particles are located on the internal and external surface of microporous system, the sizes of which are limited by the sizes of the zeolite cages.

分子筛离子交换点位上的Hg〓通过电还原成为Hg〓，在表面张力的作用下，Hg〓聚集成汞束定位在沸石分子筛孔系统的内表面和外表面，其汞束的聚集程度受分子筛尺寸的限制。

Any of several North American plants of the genus Mitella, having heart-shaped leaves and clusters of small white flowers with pinnately divided petals.

唢呐草一种北美唢呐草属，植物，有心形叶子并有成束带羽状分开花瓣的小白花

SCs divided and proliferated in three-dimensional fashion, demonstrating long olivary, triangular or long fusiform shape with obvious prominence. Furthermore, The SCs connected end-to-end with each other or aligned in clusters and the protein granules secreted on cellular surface were also showed.

雪旺细胞分裂增殖呈三维生长，细胞形态多为长梭形，纺锤形或长三角形，突起显著，细胞呈端对端的相互连接或排列成束状或栅栏状，细胞表面蛋白颗粒分泌良好。

In pituitary and thyroid of kidney Yang deficiency group, there were ultrastructural damages of rough endoplasmic reticulum dilation, mitochondria vacuolation, cells transformation and nucleus pycnosis.

正常组肾上腺束状带细胞排列成束，细胞内含有大量的线粒体和大而圆的脂滴，睾丸曲细精管生精上皮依次排列着不同生精细胞-精原细胞、初级精母细胞、精细胞、精子。

The regurgitant volume was calculated by temporally integrating the instantaneous flow volume rate of each frame during systole.

建立了基于经食道旋转扫描二维和经胸实时三维超声多普勒血流图像获取方法和图像插值、配准算法获得体数据，经多维重建描述二尖瓣反流速度的空间分布，立体观察返流的时相、方向、反流束长度、面积、体积、空间传播和严重程度等；通过重建反流后的速度场，从血流动力学角度分析了二尖瓣反流的性质，计算偏心反流束的湍流强度，利用反流束角度和湍流强度对计算结果进行修正；基于实时三维彩色多普勒成像技术，利用控制体原理对二尖瓣反流束在反流瓣口横断面的速度分布进行空间与时间积分获得二尖瓣偏心性反流的每搏反流量。

In pulping and papermaking process, the existence of shives leads to many problems, such as affecting the performance of a paper machine negatively, decreasing the strength properties and printability of the paper, and so on.

摘 要：介绍了高得率制浆工艺对消除浆中纤维束的影响，论述了降低纤维束含量从而提高纸浆质量及成纸印刷适性的措施。

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。