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Method for monitoring the water level in plant or flower vases has a pair of vertically spaced contacts and an electronic circuit activating a LCD display unit
Method for monitoring the water level in plant or flower vases has a pair of vertically spaced contacts and an electronic circuit activating a LCD display unit
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机译:用于监测植物或花瓶中水位的方法,该方法具有一对垂直间隔的触点和激活LCD显示单元的电子电路
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摘要
The monitor unit is placed in the vessel and has electrical contacts (2,3) at different heights and a four section display (6) and controlling electronic unit (4) which indicates full,low and empty conditions.
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