The pantograph rises when the train starts.

当火车启动时，受电弓会升起。

Engineers are testing the new pantograph for efficiency.

工程师们正在测试新型受电弓的效率。

A damaged pantograph can cause delays in train services.

损坏的受电弓可能导致火车服务延误。

The pantograph is raised to connect with the power lines.

受电弓被升起以连接电力线。

The engineer is checking the condition of the pantograph.

工程师正在检查受电弓的状态。

The pantograph collects electricity from the overhead wires.

受电弓从架空电线收集电力。

The pantograph must be regularly maintained to ensure safety.

受电弓必须定期维护以确保安全。

The train's pantograph collects power from the overhead wire.

火车的受电弓从电线上获取电力。

The pantograph is an essential part of an electric locomotive.

受电弓是电力机车的重要组成部分。

The train's pantograph needs regular maintenance to function properly.

火车的受电弓需要定期维护才能正常工作。