total absorption coefficient

例句：

1. 1.The absorption of sunlight by the leaves is crucial for photosynthesis.
   叶子对阳光的吸收对于光合作用至关重要。
2. 2. The absorption of carbon dioxide by plants is essential for their growth.
   植物对二氧化碳的吸收对其生长至关重要。
3. 3. The absorption rate of a drug can vary depending on factors such as dosage and frequency of administration.
   药物的吸收速率可能因剂量和给药频率等因素而有所不同。