毒性试验和毒性逆转试验全部合格。
The toxicity test and test for reversion to toxicity proved qualified totally.
美国大气研究中心的科学家根据北风试验，预测未来十年北冰洋海冰融化现象有可能停止甚至逆转。
Scientists at the National Center for Atmospheric Research even predicted in a recent study that Arctic sea-ice melt might pause or reverse over the next decade, depending on northern-wind patterns.
有各种逆转录酶聚合酶链反应(扩增核糖核酸基因组RT–PCR)检测试验方法，但灵敏度各不相同。
Various reverse transcriptase–polymerase chain reaction (RT–PCR) methods are available but are of variable sensitivity.
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