本文探讨短寿命氡子体从家兔肺内的廓清。

The clearance of short-lived radon daughters from rabbit lung is studied in this paper.

本研究的贡献在于，以历史法和统计法等多种方法相结合，廓清了清代江西解元和举人分布的共时态、历时态特点。

Contribution of this dissertation is to comb out the Characteristics of distribution of Jie-yuan and Ju-ren in Jiangxi with a conjunct method of history and statistics.