“civil air defense shelter”的概念、定义、翻译、参考文献-科学参考

单词	civil air defense shelter
释义	civil air defense shelter Encyclopedia 工学人防工程释 civil air defense shelter人防工程为防范或减轻战争空袭危害，保护国家和人民生命财产安全，按预定防护要求修建的防护工程。全称人民防空工程。美国、英国、法国、瑞士、瑞典、芬兰等国家称民防工程。
随便看	optical power meter optical pressure optical principal points optical processing optical processor optical properties of atmosphere optical properties of ceramics optical properties of crystal optical properties of ground objects optical properties of helix alignment liquid crystal optical properties of liquid crystal optical properties of materials optical properties of polymers optical properties of semiconductor optical property optical protection coating optical proximity effect correction optical pulsar optical pulsation optical pulse optical pump optical pumping optical pumping, light pumping optical pumping magnetometer optical pupil

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