In this eclipse, the Observatory is slightly off the track of annularity (by 10 km).

这次日中，天文台于环 10 里外。

Objectives To evaluate the methods and effect of using modified annularity ligation to the treatment of pediatric redundant prepuce and phimosis.

目的讨改良环法疗小儿包皮过长和包茎的方法和效果。