steam-cylinder jacket band

例句：

1. 1. The steam engine's jacket band is essential for maintaining the proper temperature of the cylinder.
   蒸汽机的外套带对于保持气缸的温度至关重要。
2. 2. The engineer carefully adjusted the jacket band to ensure a smooth operation of the machine.
   工程师仔细调整了外套带，以确保机器的平稳运行。
3. 3. The new design of the jacket band has significantly improved the durability and efficiency of the steam engine.
   新型外套带的设计显著提高了蒸汽机的耐用性和效率。