“现时性能评级”的概念、定义、翻译、参考文献-科学参考

单词	现时性能评级
释义	现时性能评级 present performance rating (P.P.R.)
随便看	two-man foxhole two-man ladle two-man policy two-man rule two-man saw two-man steel shelter two-master two-men optical system two-mesh filter two-mica granite two mirror anastigmat two-mirror objective two-mirror system two-mode ring gas laser two-mode turbulence two-mold machine for forming brick two-motion selector two-motion switch two-motor car two-motor drive two-motored airplane two-neck bottle two-needle two-needle bar two-needle overlap

科学参考收录了1248194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。