observed mean availability 观测平均利用性
These factors include importance of the dam, severity of the ground motion, occurrence or lack of observed damage, and availability of quality strong motion records at or near the dam.
这些因素包括:大坝的重要性,地震时地面运动的程度,大坝出现或没有出现重大损坏,以及在当地或附近发生强震时大坝质量的可靠性。
Current disease patterns do not explain the significant gaps observed in the availability of medicines for chronic and acute conditions.
当前的疾病模式无法解释所观察到的慢性和急性病药品可获得性的重大差距。
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