例句與造句

1. in addition to this the performance of resistance to hot-oxygen ageing of nr is obviously improved with the antioxidant d purity increasing
   天然橡膠的熱氧老化研究結(jié)果表明，防老劑d純度越高，天然橡膠的抗熱氧老化能力越強。
2. It's difficult to find oxygen aging in a sentence. 用oxygen aging造句挺難的