例句與造句

1. Abstract : the three - way emission control technology and the principle of auto exhaust cat alytic converter are introduced . this article indicates some new requires in the auto materials and manufacture techniques after using catalytic converter
   文摘:介紹了汽車尾氣三元催化凈化技術(shù)及凈化器的主要工作原理，著重指出了三元催化凈化技術(shù)及凈化器的出現(xiàn)給汽車材料和制造技術(shù)上帶來的一些新要求，提出了清潔環(huán)保性能是今后汽車發(fā)展的重要方向。
2. It's difficult to find three-way emission control in a sentence. 用three-way emission control造句挺難的