单词：annular stricture
单词：annular stricture 相关文章
On December 25, 2000, many people across North America received a rare Christmas treat when the moon passed in front of the sun resulting in a partial solar eclipse. Solar eclipses occur when the moon passes between the Earth and the sun, and the moo
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第四章 泌尿系统 Chapter 4 Urinary System 1, 25- hydroxycholecalciferol 羟胆钙化醇 abdominal part of the ureter 输尿管腹部 apex of bladder 膀胱尖 body of bladder 膀胱体 cystoptosis 膀胱脱垂 erythropoietin 红细胞生成素 external urethral orifice 尿道外
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AS IT IS 2016-09-02 Ring of Fire Eclipse Passes Over Africa People in parts of Africa witnessed a ring of fire in the sky Thursday, created by the moon passing between the Earth and the sun. The solar event is called an annular eclipse. A total solar
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An annular solar eclipse is seen formed over the sky of Burma's ancient historic city of Bagan, 15 Jan 2010 Holly Gilbert, an astrophysicist at NASA, explains the science behind the spectacle of the sun's disappearance. So during a total solar eclips
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