Level position measuring method, level marking method and level marking apparatus comprising hose
The edge of a flexible hose 8 is opened and the other edge thereof is closed, a pressure sensor 9 is fixed to the closed edge of the hose. Suppose, a water level of the opened edge of the hose is defined as a datum level 11, when the pressure sensor 9 positions at the equal level to the datum level...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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