“堑”的概念、定义、翻译、参考文献-科学参考

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。

单词	堑
释义	堑 moat
随便看	group pulse group purchase group quarantine group rate group rate system group rationality group reaction group reagent group record group redundant technique (GRT) group relationship group relaxation group relay group relief group repeat count group representation group reservation group retarder group sampling group selection group-selection cutting group-selection felling group-selection system group selector group separator