“闭关自守政策”的概念、定义、翻译、参考文献-科学参考

单词	闭关自守政策
释义	闭关自守政策 closed-door policy policy of seclusion
随便看	differential roll differential rolls differential rotation differential scale differential scanning calorimeter differential scanning calorimetry (DSC) differential scintigram differential screen differential screw differential screw gearing differential-screw jack differential screw-jack differential screw jack differential segment differential selection differential selsyn differential selsyn motor differential sensitivity differential separation differential series winding differential serration differential servo differential settlement differential shaft differential sheave

科学参考收录了1248194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。