“活动环”概念、定义、翻译-科学时代

单词	活动环
释义	航空航天词汇手册 moving reticle 活动环
随便看	portable meridian circle portable mine detector portable missile portable mixer portable multichannel analyzer Portable Network Graphics portable network graphics portable network graphics (PNG) Portable Network Graphics (PNG) portable network graphics (PNG) Portable Network Graphics--Portable Network Graphics (PNG) portable network graphics--portable network graphics (PNG) Portable Operating System Interface for UNIX (POSIX) portable operating system interface of UNIX portable operating system interface of UNIX (POSIX) portable pendulum tester portable pension portable pension portable pension plan portable people-meter (PPM) portable people meter（PPM） portable phonograph portable prospecting radiation meter portable radar portable rig

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。

moving reticle