Objective: To investigate ct and MRI features of pulmonary embolism and improve diagnosing value of CTPA and MRPA through analysis and comparison the CTPA and MRPA signs.
目的：通过对肺动脉栓塞的CT与MRI征象的分析和比较，探讨肺动脉栓塞的CTPA与MRPA的特征性表现，提高肺栓塞的CTPA与MRPA诊断应用价值。
In addition to some special USES of the relative words discussed in the third part, this pa per establishes a system of them through analysis and comparison in the first two parts.
本文除了在第三部分谈了关系词的一些特殊用法之外，主要是通过第一、二部分的分析和比较，确立了关系词的体系。
Through analysis and comparison, the correctness and feasibility of the present model and method were validated.
通过分析和比较，证实了本文模型和方法的正确性和可行性。
Through analysis and comparison, some conclusions are obtained.
通过分析比较，得出了几点结论。
Through analysis and comparison, a new adaptive dynamic minimum hop routing algorithm (ADMH) is proposed.
通过对已有算法的分析和比较，提出了一种自适应最小跳数路由算法(admh)。
Through analysis and comparison of testing data, the one high driving and different diameter rolling have reduced 21-40 percent rolling force and assured the safety of the parts under stress.
通过实验数据分析和比较，单辊传动异径轧制可降低轧制力21—40％，保证了轧机受力零件的安全。
Through analysis and comparison of testing data, the one high driving and different diameter rolling have reduced 21-40 percent rolling force and assured the safety of the parts under stress.
通过实验数据分析和比较，单辊传动异径轧制可降低轧制力21—40％，保证了轧机受力零件的安全。
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