in stream water use
在溪水中使用
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Carefully fill two sampling bottles completely with stream water. Use the dissolved oxygen meter to measure dissolved oxygen in the water.
小心地把两个取样瓶以溪水完全装满。以溶氧量计测量水中的溶解氧量。
youdao
The simple mechanical pump draws water from a shallow well or nearby stream or river for use in irrigation.
VOA: standard.2009.12.18
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