The main measurements were presence, preventability and severity of an ADE.

主要监测内容是药物不良事件的存在与否, 可否防范及严重程度.

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The fault has such characteristics as relative objectivity, uncertainty , gradation, inevitability, and preventability.

错误具有诸如相对客观性 、 不确定性 、 层次性 、 不可回避性和可预防性等特征.

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