基本解释痛觉缺失同根派生 英汉例句The analgesic effects and adverse drug reactions(ADR)after analgia 4h,8h,12h and 24h were observed and recorded. 分别于镇痛开始后4小时、8小时、12小时、24小时观察并记录镇痛效果及不良反应。analgesia; analgia 无痛法