dual threshold

例句：

1. 1. The researchers found that the dual threshold for detecting a disease was higher than expected.
   研究人员发现检测疾病的双阈值高于预期。
2. 2. The company has set a dual threshold for its employees' performance and safety.
   该公司为员工的表现和安全设定了双重标准。
3. 3. The new policy will have a dual threshold effect on both economic growth and environmental protection.
   新政策将对经济增长和环境保护产生双重影响。