Birch-bark的意思|示意

We found that birch bark could serve as paper.

我们发现桦树皮可以作纸用。

The birch tree has white bark, and this tough protective outer layer of the tree, this white bark, is waterproof.

桦树有白色的树皮，树上这个坚硬的保护外层，这个白色的树皮，是防水的。

I feel the delicate symmetry of a leaf. I pass my hands lovingly about the smooth skin of a silver birch, or the rough shaggy bark of a pine.

我感到树叶的对称美，用手摸着白桦树光滑的树皮或是松树那粗糙的厚厚的树皮。

Objective to study the antitumor effects of the extraction of birch bark (EBB) and its influence to the immune function of the tumor-bearing mice.

目的探讨桦树皮的抗肿瘤作用和对荷瘤小鼠免疫功能的影响。

They instructed the new-comers in their agriculture and woodcraft, introduced them to maize, beans, squash, maple sugar, snowshoes, toboggans, and birch bark canoes.

他们对这些新来的人在农业耕作和森林环境知识方面加以指导，教他们认识玉蜀黍、豆子、西葫芦、槭糖、雪地鞋、长雪橇和桦树皮独木舟。

These shoes were commonly made from Birch bark, but they could also be made from linden or lime-tree bark.

这种鞋通常是用桦树树皮做的，但也会用菩提树或是椴树树皮做材料。