| 摘要 |
A dual brake system is provided with a master cylinder unit, a pressure regulator valve unit and at least one wheel brake unit. Each unit has two hydraulically independent chambers therein and one chamber of each unit is connected with one chamber of each of the other units to define two independent hydraulic brake units. The ratio between the chamber of one unit to the chamber of the other unit in each unit is identical and is other than unity. An indicator or alarm is operatively connected to the pressure regulator valve unit.
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