hot-water pump cylinder liner

例句：

1. 1. The hot-water pump cylinder liner is essentialfor maintaining the proper temperature in the watersystem.
   热水泵气缸衬里对于保持水系统温度至关重要。
2. 2. The engineers carefully inspected the hot-water pump cylinderliner to ensure it was functioning properly.
   工程师们仔细检查了热水泵气缸衬里，以确保其正常工作。
3. 3. The hot-water pump cylinder liner was replaced afterseveral years of use, as it hadbecome worn and damaged.
   经过几年的使用后，热水泵气缸衬里被更换了，因为它已经磨损和损坏了。