该研究没有评估临床治愈率，仅仅是最低有效浓度。
This study did not evaluate clinical cure rates, just trough levels.
目的探讨开胸手术后罗哌卡因胸段硬膜外镇痛的最低有效浓度。
Objective to determine the minimum effective concentration of ropivacaine in thoracic epidural analgesia after surgical incision into the chest wall.
最好使用最低有效浓度，因为长时间使用高浓度的皮质类固醇可以引起例如皮肤变薄等副作用。
It is best to use the lowest effective strength as using high strength topical steroids for periods of time can cause side effects such as thinning of the skin.
记录术中最低肺泡内有效浓度(MAC)。
Minimum alveolar concentration (MAC) before and after operation was recorded.
且最低有效抑制浓度的SDS对培养细胞的影响甚微，较此高8倍浓度的SDS仍然安全。
At this concentration, SDS had only tiny influence on cell culture system and when the SDS concentration increased 8 times it was still safe.
且最低有效抑制浓度的SDS对培养细胞的影响甚微，较此高8倍浓度的SDS仍然安全。
At this concentration, SDS had only tiny influence on cell culture system and when the SDS concentration increased 8 times it was still safe.
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