“入门”概念、定义、翻译-科学时代

单词	入门
释义	图书馆、情报与文献学词汇手册入门 getting start
随便看	PPI (pixels per inch) PPI (policy proof of interest) PPI--PPI (pixels per inch) PPI--PPI (pixels per inch) PPI--PPI (producer price index) PPI (producer price index) PPI (producer price index) PPI (producer price index) PPI（policy proof of interest） PPLC (photoresponsive polymer liquid crystal) PPLive PPLive网络电视 PPL (pay-per-lead) P (plug & play) ppm ppm ppm (parts per million) PPM (portable people-meter) ppm--ppm (parts per million) PPM (pre-production meeting) PPM1 (page per minute) PPM2 (pulse position modulation) PPM（portable people meter） PPO P (poise)

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。