minimum number of theoretical plate

例句：

1. 1.The temperature is at its minimum.
   温度降到了最低。
2. 2.We need to find the minimum of this function.
   我们需要找到这个函数的最小值。
3. 3.The company's minimum wage is $15 per hour.
   公司的最低工资是每小时15美元。