“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	centralized purchase and distribution centralized purchasing centralized purchasing centralized purchasing centralized regulation centralized regulation of heating system centralized school centralized state power centralized system centralized traffic control centralized traffic control (CTC) centralized tribe centralized type of organization centralized wind energy system centralizer centralizer central leader central library central life interest central lighting control central limits theorem central limit theorem central limit theorem central limit theorem central limit theorem

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）