“challenging unit”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	challenging unit
释义	challenging unit 攻击单位
随便看	seven-segment display seven-segment driver seven-segment numeric indicator seven-segment representation seven-stage lazer seven-stand forming mill seven-star needle seven-tenths rule seven-thirds rule seven-track compatibility seven-unit code seven-unit error detecting code sever severable contract several divisions of primary endosperm nucleus several-for-one several generations several hundred kilometers several investigations in agriculture several-layer solenoid several liability several phenotypes several searchers severance severance and conservation taxes