“dictionary of difficulties”的概念、定义、翻译、参考文献-科学参考

单词	dictionary of difficulties
释义	dictionary of difficulties Encyclopedia 文学词典释 dictionary of difficulties; dictionary of hard words难词词典早期词典编纂的一种主要类型，针对有一定理解和使用难度的语词进行必要的解释。
随便看	railway engineering railway engineering geophysical exploration railway engineering survey railway environment noise railway environment vibration railway express for less-than-carload freight railway fecal sewerage collection and discharge railway flat car railway food hygiene railway foundation treatment railway freight car railway freight transportation railway geographic information system railway goods invoice information system railway goods transportation railway goods transportation measurement and inspection railway goods yard Railway Guerrilla railway industrial siding railway infrastructure communication network railway intelligence service railway intelligent building railway intelligent dispatching command railway intelligent logistics railway intelligent transportation system

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。