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1.The car's hydraulic brake fluid needs to be replaced regularly.
汽车的液压制动液需要定期更换。
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2.The technician used a special tool to flush out the old hydraulic brake fluid.
技师使用特殊的工具来冲洗掉旧的液压制动液。
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3. The brake system is designed to use hydraulic brake fluid for power assist.
刹车系统设计用于使用液压制动液提供动力辅助。