mEq

例句：

1. 1. The scientist measured thetemperature with a millimeter ruler.
   科学家用毫米尺测量温度。
2. 2. Thecompany's profits haveincreased by a micro amount inthe past year.
   公司过去一年的利润增加了一小部分。
3. 3. The physicist calculated themass of the planet using a quintillionth of a gram.
   物理学家使用万亿分之一克计算行星的质量。