“operational maintenance”的概念、定义、翻译、参考文献-科学参考

单词	operational maintenance
释义	operational maintenance [´äp·ǝ`rā·shǝn·ǝl `mānt·ǝn·ǝns] ^ENGINEERING The cleaning, servicing, preservation, lubrication, inspection, and adjustment of equipment; it includes that minor replacement of parts not requiring high technical skill, internal alignment, or special locative training.
随便看	parabolic coordinate system parabolic cylinder parabolic cylinder functions parabolic cylindrical coordinate system parabolic differential equation parabolic dune parabolic flight parabolic microphone parabolic orbit parabolic partial differential equation parabolic point parabolic reflector parabolic rule parabolic segment parabolic spiral parabolic type parabolic velocity paraboloid paraboloidal antenna paraboloidal coordinate system paraboloidal reflector paraboloid of revolution parabomb para-bromoacetanilide para-bromoaniline

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。