The risin and tannin that can be extracted from it are sought by the chemical industry.
从提取松香和鞣是化学工业上很。
声明：以上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
The water draws out of this bark a substance known as tannin; and the tannin changes the soft, jelly-like skins into tough, strong leather.
在水作用下, 树皮能够分泌种名叫鞣酸物质, 而它就可以把凝柔软毛皮实、牢固皮革。
It takes years for a skeleton to vanish, but the shoes treated with tannic acid—they won't eat them.
骸骨需要几年才能消失，但是用鞣酸处理过鞋子——海水无法吞噬它们。
Turns out, it was made from the tannic acid of gall nuts.
原来，它是用没食子（五倍子）中鞣酸制。
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划词翻译
详细解释
提取
松香和鞣
是化学工业上很
。
种名叫
柔软
实、牢固
