When the driver puts his foot on the brake pedal the system automatically applies the optimumpressure required to avoid hitting the car in front.
当司机用脚踩刹车时，系统能够自动的产生最适当的压力避免追尾。
2
The optimum parameters, such as electron current and voltage for ionization, acceleration voltage, retarding voltage, gas inlet pressure, were determined by experiments.
通过实验确定了最佳参数，其中包括：离化电子电流和电压、加速电压、阻止电势、供气压力等。
3
The optimum design of shell surface structure is often used in pressure vessel manufacture to reduce the cost.