“道面等级号”概念、定义、翻译-科学时代

单词	道面等级号
释义	航空航天词汇手册 pavement classification number（PCN）道面等级号
随便看	offensive purgative medicinal offensive store offensive strategy offer offer offer offer offer offer offer offer offer and acceptance offer and acceptance offer and acceptance agreement offer by description offer by post offer by tender offer by tender offer curve offer curve offeree offeree offeree offeree offeree

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

pavement classification number（PCN）