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

这次，天文台于环带 10 公里外。

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

目的讨改良环扎法治疗小儿包皮包茎的方法效果。