differential liquid level gauge
... glass liquid level gauge 玻璃管液位计 differential liquid level gauge 差式液位计 ; 水位差流速计 fixed liquid level gauge 固定式液位计 ...
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差压式液位计 differential pressure type level gauge
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监测系统：贮槽液位显示用压差式液位计或微机控制的数显液位计。
Monitoring System: Pressure difference level or computer controlled digital level is adopted to indicate tank level.
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