“half-round file”的概念、定义、翻译、参考文献-科学参考

单词	half-round file
释义	half-round file [`haf ¦rau̇nd ´fīl] ^{DESIGN ENGINEERING} A file that is flat on one side and convex on the other.
随便看	sound-powered telephone sound pressure sound pressure level sound production soundproofing sound ranging sound-ray diagram sound reception sound recording sound reduction factor sound reflection coefficient sound-reinforcement system sound-reproducing system sound reproduction sound sensation sound signal sound spectrograph sound spectrum sound speed soundstripe sound system sound track sound transducer sound transmission sound transmission coefficient

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。