standard water sample

• 标准水样

standard water sample的用法和样例：

例句

1. Samples of the water contained pesticide.
   水样中含有杀虫剂。
2. Water quality of Fuzhou Westlake was monitored between October 1999 and April 2000.
   福州西湖水样理化分析结果显示上游河道冲水对西湖水质构成的威胁不容忽视。