effective diffusion coefficient

例句：

1. 1. The effectiveness of this new drug in treating cancer has been proven by multiple clinical trials.
   这种新药治疗癌症的有效性已被多个临床试验证实。
2. 2. The researchers found that the effective diffusion coefficient for carbon dioxide was significantly higher than previously thought.
   研究人员发现二氧化碳的有效扩散系数显著高于之前的预期。
3. 3. In order to improve the efficiency of solar panels, engineers are working on developing materialswith a higher effective diffusion coefficient.
   为了提高太阳能电池板的效率，工程师们正在研究开发具有更高有效扩散系数的材料。