最初的皮艇是木质架构，上敷海豹皮，用来在北冰洋的开阔水域上进行猎捕。
The first kayaks were constructed with a wooden frame covered with seal skin and used to hunt in the open waters of the Arctic Ocean.
目前阴极的实现方案很多，其中在材料基底上敷膜的薄膜阴极的方法既可利用基底本身的物理、结构特性，又可利用膜材料的物理化学性能，是一种有效的提高阴极性能的方法。
People have used many methods to make the cathode, in recent years, the film-cathode method that coated with the films of other materials on the substr.
敷木瓜浆在皮肤上。
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