| 摘要 |
PROBLEM TO BE SOLVED: To provide a differential pressure measuring device which is easily reused and friendly to global environment. SOLUTION: This differential pressure measuring device comprising liquid- separating diaphragms which are each provided at both sides of a housing and whose peripheries are fixed to the housing, and sealed-in liquid which is each sealed in two chambers formed with the liquid-separating diaphragms and the housing, is provided with a plurality of feeding holes for feeding the sealed-in liquid into the chambers.
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