“real productive activity”的概念、定义、翻译、参考文献-科学参考

单词	real productive activity
释义	real productive activity 现实的产生活动
随便看	oil thermometer oil thickening oil thief oil thinning oil thixotropic behavior oil through oil throw oil thrower oil throwing oil throw ring oil-tight oiltight bulkhead oil-tight cover oil-tight hatch oil-tight hatchcover oil-tight joint oil-tightness oil-tightness test oil-tight riveting oil-tight test oil-tight work oil tintometer oil-to-coke replacement ratio oil-to-oil booster oil-to-oil heat exchanger

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。