The anti-lock brake principle, regulating braking pressure output properties in accordance with condition of road surface so as to control the wheel slip ratio in idea scope, is put forward.
An ideal gas equation is used for quantitative analysis of gas in industrial production, then by adjusting gas temperature and pressure, it is possible to control mixing ratio of materials.
工业上用理想气体方程对气体进行定量分析，通过调节气体的温度压力来控制物料的配比。
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The 87 Series Ratio Relay Volume Boosters are used to amplify pressure or for remote pressure control - perfect for cylinder actuation or clutch and brake control.