1.Does the redesigned product/recovered material close the material loop by
making the same type of product (=) or a different one (不等于) ?
2.Does the waste material have an existing, well-established recycling system
or not?
另外第二句有没有办法弄成没有逗号的句子?
3.The criteria used to describe the examples were deemed relevant for a better
understanding of the nature of the examples obtained during the interviews.
麻烦各位帮忙小弟解决一下困惑，感谢~