“钩环”概念、定义、翻译-科学时代

单词	钩环
释义	交通运输工程词汇手册钩环 shackle
随便看	trace forward trace fossil trace gap trace ideal trace imaging traceless matrix trace level trace level activity trace material trace mineral analysis trace norm trace of a matrix trace of a matrix trace of an endomorphism trace of tensor trace particle trace point trace programme tracer tracer tracer tracer tracer tracer tracer

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。