intrinsic carrier density

例句：

1. 1.The intrinsic carrier density of the material is critical for its performance.
   该材料的内含载体密度对其性能至关重要。
2. 2. The intrinsic carrier density of the oil changes with temperature.
   油的内含载体密度随温度变化而变化。
3. 3.The intrinsic carrier density of the soil affects plant growth and nutrient absorption.
   土壤的内含载体密度影响植物生长和养分吸收。