在实验开始前一个小时，一半的受试者服用了20毫克皮质醇，另一半受试者服用的没有任何药效的安慰剂。
An hour before experiencing each fear-inducing situation, half of the participants took 20 milligrams of cortisol, while the other half took an inactive placebo.
穆雷医生告诉警方，在用药后的几个小时，他禁不住杰克逊的一再要求，最终答应给他注射了25毫克的异丙酚。
After giving various drugs over the next few hours, Dr Murray told officers he finally gave in to Jackson's repeated demands for propofol and administered 25 milligrams.
另外，它每小时能把甲醛浓度降低大约9毫克。
In addition, it is about an hour can reduce the concentration of 9 mg of formaldehyde.
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