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バネ管式真空圧力計

2018-10-26View Original

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この表のゼロ点はどこにありますか?赤線の中央位置なのか、下限なのか、それともこの黒線の範囲内でもゼロ点を表すのか?オンラインで待ってます
Reply #22018-10-27
真空圧力計のゼロ点はそれほど正確に調整することはできないため、黒線の範囲内はすべてそのゼロ点の範囲となります
Reply #32018-10-27
黒線で囲まれた範囲はすべて正常であり、メーカーは各地の大気圧が同じにはなり得ないという要素を考慮しています。

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