“hectograph”的概念、定义、翻译、参考文献-科学参考

单词	hectograph
释义	hectograph 胶版印刷
随便看	mud scraper mud screen mud seam mud settler mud-settling pit mud-settling sump mud shale mud sheet mud shell mud shield of output shaft mud shovel mudsill mud sill mud silting mud socket mud solution mudspate mud-star mud still (mud settler) mud stone mudstone mud stream mud sump mud swivel mud system

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。