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stoneware mug cup promotional gift mug What is called the gauge pressure?

Ceramic Mug    From:Xinxiang Ceramic Mug Manufacturers     2016-3-9
stoneware ceramic mug cup promotional gift mug

Numerical kiln system or other gas container pressure and external pressure difference, called the relative pressure. Because of its values can be read out directly from the pressure gauge, so it is also called the gauge pressure. In the kiln system, pressure can be divided into three kinds: if the pressure in the kiln system greater than the outside atmospheric pressure, is called a positive pressure; less than outside atmospheric pressure, called negative pressure; equal to the external pressure, is called the zero pressure.
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