The deepest layer, called the renal capsule, is a smooth transparent sheet of dense connective tissue that gives the kidney its distinctive shape.

最内层为肾包膜（纤维囊），是一层光滑透明的致密结缔组织，赋予肾独特的形状。

She had never felt such smooth sheets or such light warm blankets; but the softness of the bed did not soothe her.

她从未感受过如此光滑的床单或如此轻盈温暖的毯子。但是柔软的床并没有使她平静下来。

Unlike the smooth sheets used in today's batteries, Addionics's offering has hills and valleys; like a " tiny egg carton" , says Moshiel Biton, the company's founder.

与当今电池使用的光滑薄片不同， Addionics 公司的电池有山有谷，就像一个“微型鸡蛋盒” ，公司创始人 Moshiel Biton 说。