These differences may come from the difference of assistant materials and manufacturing process.

这种差异可能来自于添加的辅料不完全相同，或者生产工艺上的不同。

youdao

Relative to their products, they have the same concerns of the interrelationship of design, materials and manufacturing process.

关于他们的产品，他们同样要考虑设计，材料和加工方法三者之间的相互关系。

youdao

With regard to their products, they have the same concerns of the interrelationship of design, materials, and manufacturing process.

关于产品，他们同样要考虑其设计、材料和制造工艺之间的相互关系。

youdao

The independent group certifies products and services as environmentally friendly through a life-cycle evaluation - looking at the raw materials and the manufacturing process, transportation and recycling of old products.

VOA: standard.2009.03.30