“Han strategic fortification”的概念、定义、翻译、参考文献-科学参考

单词	Han strategic fortification
释义	Han strategic fortification Encyclopedia 工学建筑考古释 Han strategic fortification汉代关塞建筑汉代为军事防御和开发边疆，沿长城一线营造了大量关塞建筑，如烽、燧、关、侯城和屯戍城，作为报警和驻军之用，形成坚固的工程防御体系。通过考古勘察，并同出土的简牍记载对照，得知汉代关塞建筑的形制。
随便看	electron rich [system] electron rich system Electrons and Holes in Semiconductors electron saturation current electrons bombard active pixel sensor electron scattering electron scattering continuum electron scattering opacity electron secondary desorption electron-seeking electron self-energy electron semi conductor electron-sensitive electron shake off electron shell electron solvation electron source electron spectrometer electron spectroscopy electron spectroscopy for chemical analysis electron spectroscopy for chemical analysis (ESCA) electron spectrum electron spin electron spin resonance Electron Spin Resonance Dating

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