index of absorption

例句：

1. 1.The absorption rate of this new drug is much higher than that of the old one.
   这种新药的吸收率比旧药高得多。
2. 2.The absorption index of this material is very low, which means it can hardly be used in practical applications.
   这种材料的吸收指数非常低，这意味着它在实际应用领域几乎无法使用。
3. 3. In order to improve the efficiency of the absorption process, we need to optimize the design of the absorption device.
   为了提高吸收过程的效率，我们需要优化吸收装置的设计。