The qualitative risk factor is quantified by introducing blind data.
利用盲数对定性风险因子进行确定性赋值；
It is not possible to recognize the existence of blind zones from seismic data alone.
仅仅根据地震资料是不可能确认隐蔽层存在的。
The data are from an extension study of a randomized, double-blind, placebo-controlled trial.
这些数据来自一个随机、双盲、安慰剂对照试验、根据研究。
The data are from an extension study of a randomized, double-blind, placebo-controlled trial.
这些数据来自一个随机、双盲、安慰剂对照试验、根据研究。
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