artificial wool造句

例句与造句

1. Other techniques involve threading animal or artificial wool fiber through paperclay slip, to build up layers of material.
2. By 1932 he was in the department of chemical engineering at Columbia University where he was able to manufacture diamonds " larger than ever before produced artificially " and was able to produce artificial wool from jute.
3. It's difficult to find artificial wool in a sentence. 用artificial wool造句挺难的