Fisher水位指示器提供了一种经济可靠的方法，获得准确的水位数据，适应在水井下的各种各样的条件。
The Fisher Model WLT water level Indicator provide an economical and reliable means of obtaining accurate water level data in water Wells under a wide variety of well conditions.
Fisher水位指示器提供了一种经济可靠的方法，获得准确的水位数据，适应在水井下的各种各样的条件。
The Fisher Model WLT water level Indicator provide an economical and reliable means of obtaining accurate water level data in water Wells under a wide variety of well conditions.
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