“swivel block”概念、定义、翻译-科学时代

单词	swivel block
释义	水产业词汇手册 swivel block 转环滑车
随便看	tractor tractor tractor play tractor skidding tractor-trailer transport tractotomy tractrix tractrization Tracts for the Times Tractus tractus bulboreticulospinalis tractus frontopontinus tractus olivocerebellaris tractus posterolateralis trad tradable discharge permit tradable emission permit tradable goods tradables trade trade trade trade trade trade

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。

swivel block