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Antiknock fortify standard
抗震设防标准
是与一个国家的科学水平和经济条件密切相关的。我国目前实行抗震设防依据的“双轨制”,即采用设防烈度(一般情况下用基本烈度)或设计地震参数(如地面运动加速度峰值等)。