in cold blood flow

Your fingers and toes are more prone to frostbite, because those areas will have reduced blood flow in cold temperatures, as your body tries to keep its core warm.

手指和脚趾更容易得冻疮，因为在寒冷的气温中，身体要尽力保持核心温暖，因而要减少那些部位的血液流量。

In addition, the body will preserve heat by favoring the internal organs and thus reducing the flow of blood to the extremities under cold conditions.

此外，在寒冷的环境里，身体会降低流向四肢的血液流动速度来为内部器官保留热量。

METHODS Deep hypothermia low flow rate (DHLF) were used during CPB, 4:1 cold blood hyperkalemic cardioplegia were used in all patients.

方法CPB采用深低温低流量（DHLF），心肌保护为4：1高钾含血停搏液灌注。