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密封圈
mìfēngquān
seal ring
这个水泵的密封圈坏了，需要更换。
The seal ring of this water pump is broken and needs to be replaced.
Engineering
technical
A ring-shaped component used to prevent leakage of fluids or gases in mechanical systems.
汽车发动机的密封圈确保机油不会泄漏。
The seal ring in a car engine ensures that oil does not leak.
更换水龙头的密封圈可以解决滴水问题。
Replacing the seal ring of a faucet can solve the dripping issue.
密封圈 is commonly made of rubber, silicone, or metal, depending on the application.
Pro Tip
Distinguish from 密封垫
密封圈 is ring-shaped, while 密封垫 is usually flat and used to seal gaps between two surfaces. Think of 密封圈 as a 'ring seal' and 密封垫 as a 'flat seal'.
Word Origin
密封 (mìfēng, 'seal' or 'sealing') + 圈 (quān, 'ring') — a compound noun describing its function and shape.
Usage Notes
密封圈 is widely used in machinery, plumbing, and automotive industries. It is often confused with 密封垫 (gasket), which is typically flat and used between two surfaces, while 密封圈 is ring-shaped.
Word Breakdown
密封
to seal or make airtight
compound圈
ring
noun汉英词典