“邮政用品用具”的概念、定义、翻译、参考文献-科学参考

单词	邮政用品用具
释义	邮政用品用具 Encyclopedia 工学邮政用品用具释 postal appliances邮政用品用具进入邮政通信网中使用的具有国家标准、行业标准或其他影响邮政通信全网运行效能的各类信封、明信片、专用包装用品、邮筒（邮箱）、日戳（见邮戳）、过戳机、邮资机、条码生成器等。
随便看	service discovery and interfaces service distribution service element service engineering support tools and platforms service exemption tax service facilities service flowchart service function model service gate of hydropower station service gateway service granularity service housing/sheltered housing service incident standard service innovation and design service institutions for the disabled service interoperability service invention-creation service level service level agreement service level agreement, SLA service level objective service life service mains service management service management layer

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。