结论CBCT影像精密度高，可从三维角度分析根管，在根管治疗中诊断治疗下颌第二磨牙C型根管具有临床指导意义。
Conclusions CBCT can analyze the configuration of root canals in a three-dimensional view, which is of prime importance in the diagnosis and treatment of C-shaped canals of mandibular second molars.
为了提高CT的早期诊断性能，以及更准确地分析病情，就需要对CT图像的二维及三维的清晰显示提出了更高的要求。
In order to raise the diagnostic ability of ct and analyze the state of an illness more exactly, the 2-d and 3-d ct images must be displayed more clearly.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
分析上颌骨内埋伏正中多生牙的生长特征与影像学特点，探讨其早期诊断与术前三维定位的方法。
To investigate the appropriate method of early diagnosis and accurate pre-operative 3-D orientation of maxillary embedded mesiodens by analyzing their growing pattern and radiographic manifestations.
采用拉格朗日随机粒子扩散模式和三维风场诊断模式以及实际气象观测资料，模拟分析了福建惠安核电厂所在沿海地区的大气流动和气载污染物的中尺度扩散情况。
A Lagrangian stochastic model and a three-dimensional wind field diagnostic model are used to reveal the characteristics of mesoscale atmospheric flow and diffusion over Huian area, Fujian province.
比较分析三种方法在骨关节损伤中的诊断价值及准确度，并对三维ct成像在复杂骨关节损伤中的临床应用价值进行评价。
The accuracy and diagnostic valuation of three methods were analyzed and evaluated, the clinical significance of 3dct imaging in the application of complex bone and joint trauma was discussed.
比较分析三种方法在骨关节损伤中的诊断价值及准确度，并对三维ct成像在复杂骨关节损伤中的临床应用价值进行评价。
The accuracy and diagnostic valuation of three methods were analyzed and evaluated, the clinical significance of 3dct imaging in the application of complex bone and joint trauma was discussed.
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