medium trace element

• 中微量元素

medium trace element的用法和样例：

例句

1. The relationships between these trace elements in Chinese medicines for inducing diuresis were studied, and the accuracy and precision of the measurement results were studied too.
   探讨利尿类中药中微量元素含量之间的关系，并对结果进行了准确度和精密度测定。