With all arrows visible, the Inner Scale, set at 6 and the indicator line aligned with Outer Scale 0; the valve setting is 6.0 And the valve is fully open.

 
  • 如果能够看到所有箭头;则内部刻度设置在6。指示器线对齐外部刻度0;阀门设置是6.;则阀门处于全开状态。;
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