Congress is also seeking any evidence that Toyota, or U. s. regulators, may have ignored early signs of trouble with the car maker's acceleration and braking systems.

美国国会还希望能找到证据，以证明丰田或美国监管部门可能忽视了显示丰田车的加速和刹车系统存在问题的早期迹象。

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The usage and hidden trouble of hand brake of locomotive if introduced, an automatic protective set is added to limit locomotive moving on braking state.

介绍了机车手制动机的作用及机车运行时手制动机处于制动状态的危害。

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