“白垩纪”的概念、定义、翻译、参考文献-科学参考

单词	白垩纪
释义	白垩纪 Encyclopedia 理学中生代释 Cretaceous Period白垩纪中生代最后一个纪（第三个纪）。约开始于1.37亿年前，结束于0.65亿年前。白垩纪形成的地层称白垩系（Cretaceous System）。 Biology Cretaceous白垩纪
随便看	laser radar laser radiation hydrodynamics laser radiometry metrology technique laser Raman photoacoustic spectrometry laser Raman scattering laser Raman spectrometry laser Raman spectroscopy laser Raman spectroscopy of fluid inclusions laser range finder laser rangefinder laser range finder/designator laser rangefinder of ziyuan-3 satellite laser ranging laser ranging instrument laser rate equation laser recorder laser reflector laser remote sensing analysis laser remote sensing of atmosphere laser rendezvous sensor laser resonance ionization spectrometry laser resonance ionization spectrometry (LRIS) laser resonator laser revascularization laser rifle

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。