refractory quotient

例句：

1. 1. The new drug has a refractory quotient of 0.95, indicating it is highly effective.
   新药的抗性比率为0.95，表明其效果非常好。
2. 2. The researchers found that the bacteria had a refractory quotient of 0.85, suggesting that they were resistant to antibiotics.
   研究人员发现细菌的抗性比率为0.85，暗示它们对抗生素有抗性。
3. 3. In this study, we used a refractory quotient of 0.75 as an indicator of bacterialresistance.
   在本研究中，我们使用抗性比率0.75作为细菌抗性的指标。