When your exhaust pipe falls off, you have to replace it.
当你的排气管脱落时，你只能更换它。
《柯林斯英汉双解大词典》
2
Now you can connect the rubber hose to the galvanized drain pipe by cutting off the end connector and fitting with a hose clamp.
现在可以用管钳把软管头连同其配件切掉，把软管和镀锌管联接起来了。
3
The researchers then staged an “incident” in which the camp’s water supply was cut off and all the boys had to check the water pipe (more than 1 km long) to see where it was blocked.