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| Concept of stress |
| 2011-9-9 10:42:00 |
所说的 的压力 的 概念，实际上 是 指物理学上的压强， 也就是 单位面积上所承受压力的大小。 The concept of pressure mentioned here actually refers to the pressure in physics, that is, the magnitude of the pressure per unit area.
Positive pressure: A pressure higher than atmospheric pressure based on atmospheric pressure.
也就是 真空：以大气压力为基准，低于大气压力的压力。 Negative pressure is also vacuum: a pressure lower than atmospheric pressure based on atmospheric pressure.
者 小于大气压力的压力。 Gauge pressure: A pressure that is greater or less than atmospheric pressure based on atmospheric pressure.
Differential pressure: The difference between two pressures.
是 以绝对压力零位为基准，高于绝对压力零位的压力。 Absolute pressure: The pressure is higher than the absolute zero based on the absolute zero.
者 大于大气压力的仪表。 Pressure gauge: a gauge that is based on atmospheric pressure and is used to measure less than or greater than atmospheric pressure.
The pressure gauges sold by Jiangsu Dongxiang Instrument include: double needle pressure gauge stainless steel differential pressure gauge digital display pressure gauge electric contact pressure gauge absolute pressure gauge YE-100, 150 capsule pressure gauge, etc.