The advice comes from information written by Jenny Dean of the Intermediate Technology Development Group in Britain. 这个提议是由编写此信息的英国中级技术发展组织的Jenny Dean提出的。
This anti-poverty group is now called Practical Action. 这个扶贫组织现在被称为“实践行动”组织。
There are several methods to put dye onto material. 有几种方法都可以将染料染到衣料上。
The vat method, for example, can be used to dye wool with onionskins. 例如,大染缸染色,它常用洋葱皮来给羊毛染色。
For this example, use one hundred grams of natural wool. The wool must be clean. 在这个例子的中,取100克的天然羊毛,并把羊毛洗干净。