train wheel
复数形式
train wheels
1
火车轮, 铁路车轮
a large metal disk that rotates to help a train move along tracks
A train wheel is a round, heavy metal disc that forms part of the undercarriage of a train. It is attached to the axles and is used to support the weight of the train while allowing it to move along the tracks. Train wheels are designed to be durable and resistant to wear, as they are constantly in contact with the rails. They have a slightly tapered shape, which helps the train stay centered on the tracks as it moves. Train wheels play an essential role in ensuring smooth and stable movement, allowing the train to travel efficiently over long distances.
- Train wheels are designed to endure long journeys without needing frequent replacement.
火车车轮设计用于承受长途旅行而无需频繁更换。
- Each train wheel is carefully crafted to maintain stability and balance on the tracks.
每个火车轮都经过精心制作，以保持轨道上的稳定性和平衡。
- The mechanics of a train wheel include bearings that reduce friction and ensure smooth movement.
火车轮的机械结构包括减少摩擦并确保平稳运动的轴承。
- Train wheels are subject to regular maintenance to prevent malfunctions and ensure passenger safety.
火车车轮需要定期维护以防止故障并确保乘客安全。
- The size and shape of a train wheel are standardized across different types of trains for interoperability.
为了确保不同类型列车之间的互操作性，火车车轮的尺寸和形状是标准化的。