1. Research shows, on mountain highway with varied falling gradient, the continuous brake mode affected together can make vehicle travels steady in the speed range.
研究表明，在坡度不断变化的山区公路上，联合作用的持续制动方式可以使汽车在上述速度范围内稳定行驶。
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2. Research shows, on mountain highway with varied falling gradient, the continuous brake mode affected together can make vehicle travels steady in the speed range.
