optimum operating current

例句：

1. 1. The optimal operating current forthis device is 20 milliamps.
   该设备的最优操作电流为20毫安。
2. 2. Optimal operating conditions areessential for efficient energy conversion.
   最优操作条件对于有效的能量转换至关重要。
3. 3. Thedesign of the circuit requirescareful consideration of the optimal operatingcurrent.
   电路的设计需要仔细考虑最优操作电流。