Amputation 英 /ˌæmpjuˈteɪʃn/ 美 /ˌæmpjuˈteɪʃn/
释义 n. 截肢；切断（术）
例句 Until now, how amputation is translated into gene activation has been like magic. 迄今为止，截肢是如何被解释为基因活化仍像魔法一样。
作者： Manganaro MS
期刊：Br J Radiol
Frostbite is a localized cold-induced tissue injury resulting from prolonged exposure of flesh to freezing (0°C) and near freezing (2°C) temperatures.1,2 Frostbite typically affects adults between 30–49 years of age with a strong male predominance (10:1) and most commonly involves the hands and feet (>90% cases), although the face, cheeks, ears and nose may also be affected. Vasospasm and arteriovenous shunting leading to ischemia and infarction is central to the pathogenesis of frostbite and occurs on a spectrum ranging from minor exposure and pernio (chilblains), to necrosis and gangrene. The severity of frostbite is dependent on the duration of exposure. Frostbite has a predilection for those who are unable to protect themselves from adverse environments such as wilderness hikers, alcoholics and substance abusers, psychiatric patients, and the poor.