“邮资凭证”的概念、定义、翻译、参考文献-科学参考

单词	邮资凭证
释义	邮资凭证 Encyclopedia 工学邮资凭证释 postage vouchers邮资凭证由国家（地区）邮政部门发行的，作为邮件纳费标志的有价票证。包括邮票、印在邮资信封、邮资明信片、邮资邮简、邮资信卡上的邮资图案，邮资机打印的邮资符志，以及国际回信券。
随便看	backscattered electron backscattered light backscatterer back scattering back-scattering backscattering backscattering analysis backscattering analysis, BSA back scattering-channeling effect back scattering method backscatter peak backscatter X-ray inspection technology backshaft backshift operator backshore subfacie back-shu point back-shu points and front-mu points combination，back-shu points and front-mu points association backside attack backside-illuminated CCD backside-illuminated CMOS back silting backslash backspring backstage bans and prohibitions backstage of Goulan (an open-air performance venue)

科学参考收录了854744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。