基本解释重要度同根派生 importanc相关词英汉例句This paper presents the challenge that diesel engines s hall face to meet standards and regulations of emissions,discribes its importanc e of the aftertreatment technology are presented. 本文分析了目前柴油机面临的未来排放污染物标准的挑战以及后处理技术的必要性。importanc更多例句