通过分析TDOA定位误差模型，讨论了同一辆公交车上同一时刻的多部手机的定位误差分布特征。
Then, we analyze the error statistic model when using TDOA to locate, discuss the statistic character of error distribution when using multi-phones location.
本文通过分析提出：学校体育的研究因为学科性质定位认识上的模糊，致使一些研究成果的苍白，不能真正有效地指导教学实践。
In this article: the misunderstanding of subject definition and orientation leads to the superficiality of some research results that are incapable of guiding teaching practice.
本文通过分析社区矫正与社会工作的关系，对社会工作在社区矫正中的定位进行了探讨。
The paper probes into the orientation through analyzing the connection of community and social work.
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