The variable rotation transformation (VRT) method is proposed to control nonlinear chaos system.
设计了一种控制非线性系统混沌的变量旋转变换(VRT)方法。
Objective To evaluate the values of visual retention test (VRT) in the patients with silent brain infarction (SBI).
目的评估视觉保持测验（VRT）在无症状性脑梗死（SBI）中的应用价值。
VRT could clearly display full aperture of screw orbit, location of screw and angle of fixation and hence was superior to X-ray plain film and MPR.
VRT成像能清晰显示螺钉轨道全径、螺钉位置及固定角度，并优于X 线片及MPR成像。
Methods Reconstruction techniques were used after 16-slice ct imaging had been completed for 42 patients with bone tumors. The techniques include MPR, MIP, SSD and VRT.
方法42例骨肿瘤患者行16层螺旋CT容积扫描后，做多平面重建(MPR)、最大强度投影(mip)、表面遮盖(SSD)、容积漫游(VRT) 4种后处理。
By introducing the basic concept of precision irrigation system, This paper put forward that VRT (Variable Rate technology) is the pivotal technology of precision irrigation.
本文通过对精准灌溉系统基本概念的论述，提出变量技术是精准灌溉的技术关键。
Methods 24 patients who suspected as harboring cerebral aneurysms by referring physiciansunderwent 3DCTA. 3D post processing techniques including MIP and VRT after bone subtraction.
方法对24例临床疑有颅内动脉瘤患者进行3DCTA检查，后处理技术包括最大信号强度投影（MIP）以及容积重建（VRT）。
Through this article the features of VRT were introduced, and the application and development prospect of VRT in laboratory teaching of oral and maxillofacial surgery were also discussed.
简要介绍了虚拟现实技术的特点，重点探讨了虚拟现实技术在口腔颌面外科学实验教学领域中的应用与发展前景。
Results Compared with MPR, VRT was superior in displaying all kinds of maxillofacial bone fractures, location, bone chip displacement, collapse degree and walking direction of irregular fracture line.
结果VRT在显示颌面部骨折的类型、位置、范围、碎骨块移位、塌陷，尤其是不规则骨折线的走行等空间信息方面优于多平面重建。
Results Compared with MPR, VRT was superior in displaying all kinds of maxillofacial bone fractures, location, bone chip displacement, collapse degree and walking direction of irregular fracture line.
结果VRT在显示颌面部骨折的类型、位置、范围、碎骨块移位、塌陷，尤其是不规则骨折线的走行等空间信息方面优于多平面重建。
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