The PBF of the male and female patients with various ages had significant differences(P<0.05).
不同年龄男性和女性体脂百分比有差异（P<0.05）。
METHODS: Radioactive microsphere technique (RMT) was used in the measurement and calculation of PBF.
方法：采用放射性生物微球技术，测量并计算犬牙髓组织的PBF值。
The suggestion of these three groups of PBF has significant meaning in the study of tectonic of mid-Asian area.
这一构造体系对中亚地区的大地构造研究具有重要的意义。
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