“productive time”的概念、定义、翻译、参考文献-科学参考

单词	productive time
释义	productive time [prǝ`dǝk·tiv `tīm] ^{INDUSTRIAL ENGINEERING} Time during which useful work is performed in an operation or process.
随便看	piedmont bulb piedmont flat piedmont glacier piedmont gravel piedmont ice piedmont interstream flat piedmontite piedmont lake piedmont plain piedmont plateau piedmont scarp piedmont slope piedmont stairway piedmont step piedmont treppe pi electron piemontite pier piercement piercement dome Pierce oscillator Pierce's disease piercing piercing fold piercing gripper

科学参考收录了103327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。