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- Conclusion The proximal isovelocity surface area method in quantitative diagnosis of mitral valve eccentric regurgitation had higher accuracy, it would be widely used in clinic. 结论血流汇聚法能较为准确地定量评价二尖瓣偏心反流程度，具有良好的应用前景。
- Objectives\ This study was designed to examine whether proximal isovelocity surface area method(PISA) is better than pressure half time method(PHT) in the measurement of mitral mechanical prosthetic orifice area(MPOA). 目的探讨血流汇聚法（pisa法）与压差半降法（PHT法）测量机械二尖瓣口有效开放面积的准确性及可靠性。
- The hard outer portion or surface area of bread. 面包皮面包的表面区域的硬皮
- Accuracy of the proximal isovelocity surface area method in calculating valve area of mitral stenosis 近端等速表面积法测量二尖瓣狭窄瓣口面积的准确性
- Quantitative evaluation of mitral valve eccentric regurgitation with proximal isovelocity surface area method 血流汇聚法定量评价二尖瓣偏心反流
- [6]Lu AH,Jin Q.Evaluation of eccentric mitral regurgitation by using proximal isovelocity surface area method[J].J Clin Med Pract,2002,6(5):441-442. 陆爱华;金奇.;彩色多普勒血流汇聚法对偏心性二尖瓣返流程度的评估[J]
- The BET surface area of CA could achieve 340.1m2/g. 炭化树脂的BET比表面积可达340.;1m2/g。
- The surface area of aggregate per unit volume of mortar does have influence on the mean value of the nearest surface spacing, but the ratio between them is not constant. 单位砂浆体积下集料的表面积的变化对邻近集料表面最近间距的平均值有影响,但二者之间的比值并非常数。
- There are inherent difficulties in selecting any method as a standard for catalytic surface area determinations. 要选定一种测定催化剂表面积的标准方法具有其特有的困难。
- Exact computation of the burning surface area is lengthy. 燃烧面积的精确计算是非常繁难的。
- In printing, the surface area taken up by type of a given size. Thus an8 point type occupies a print area of8 point em. 在印刷技术中，给定尺寸的铅字所占有的表面积。这样，一个8点的铅字则占有8点em的印刷面积。
- [4]Ye J,Yang XH,You YG,et al.Quantitative evaluation of mitral regurgitation by proximal isovelocity surface area method of color Doppler[J].Chin J Ultrasound Diagn,2003,4(8):588-589. 叶军;杨心华;游宇光;等.;彩色多普勒血流汇聚法定量评估二尖瓣反流的研究[J]
- The burning surface area remains constant during the entire firing. 在整个燃烧期间的燃烧面积是常值。
- Pour the colorized permeating floor materials into the mixer. After 3-5 minutes mixing, add 2.2 kilograms water for every 50 kg floor materials and then mix until the aggregate surface shines. 将彩色透水地坪料倒入搅拌机中，必须干搅拌3-5分钟后，每50公斤透水地坪料加2。2公斤水搅拌，到骨料表面发亮这才停机。
- Class, and the surface area is calculated for each figure. 类,并为每个图形计算表面积。
- What effect does emphysema have on the surface area of the lungs? 肺部表面如果出现裂层有什麽影响?
- The formulas of lateral area, surface area, and volume of pyramid can be given by Vector Method. 立体几何中棱锥的侧面积、全面积、体积公式都可用向量方法给出。
- The simple determination of specific surface area for porous solids by ethanol-desiccator method is described. 简易干燥器乙醇法测定多孔物质比表面积。
- The method has no harm for the surface properties and pore size distribution of GAC. 78% of BET surface area and total pore volume were recovered. 方法对活性炭表面性质无损害,再生炭的BET比表面积和总孔容积可恢复到新炭的78%25,孔径分布基本无变化。
- Comparatively, the pore fractal dimension calculated with the area method is more sensitive to sail texture than with the circumference teethed. 与周长法相比较，用面积法计算的孔隙分形维数对土壤质地更为敏感。
