“crown block”概念、定义、翻译-科学时代

单词	crown block
释义	矿业工程技术词汇手册 crown block 起重定滑轮
随便看	Deficiency Law deficiency letter deficiency loop deficiency need （D-need） deficiency of men deficiency of stores deficiency of yang affecting yin deficiency of yin affecting yang deficiency of yin leading to hyperactivity of fire deficiency payment deficiency payment deficiency psychology （D-psychology） deficiency reserve deficiency statement deficiency symptom deficiency with excess complication deficiency yang floating upward deficient draft deficient flow deficient pondage deficient product deficient value deficient virus deficit deficit

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。