... 按规格买卖||sales as per specifications 按规模大小分类,按规模大小分组||classification by size; size classification 按贵方价格||at your limit ...
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coal classification by size 煤按粒度分类法
Methods: According to anatomic classification, the location and the size were determined by using echocardiography in 372 patients with VSD, and were compared with that of surgery findings.
方法：按解剖学室缺分型，用超声心动图对372例室缺进行定位及测量大小，并与手术结果进行对照。
Conclusion: a fair accuracy can be reached by echocardiography in the location of VSD on the basis of anatomic classification and the VSD size measurement.
结论：超声心动图按解剖学分型定位室缺及室缺大小定量具有一定的准确性。
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