proper concave function

例句：

1. 1. The properconcave function is crucial for the stability of the system.
   适当的凹面函数对于系统的稳定性至关重要。
2. 2. In designing a new car, engineers must consider the proper concave function of the suspension system.
   在设计新车时，工程师必须考虑悬挂系统的适当凹面函数。
3. 3. The proper concave function helps to minimize the energy loss in the transmission system.
   适当的凹面函数有助于最小化传动系统中的能量损失。