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仪表机械部分的作用原理与一般弹簧管压力表相同。
The mechanic part principle is same with normal spring pipe meter.
youdao
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SY1型系列井下压力计，是一种弹簧管式井下压力计。
SY1 series downhole pressure gauge is made of spring tube.
youdao
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SY1型系列井下压力计，是一种弹簧管式井下压力计。
SY1 series downhole pressure gauge is made of spring tube.
youdao