| 摘要 |
A leakage detecting device has a cover, a first cup and a second cup. The cover is mounted on the opening of the water tank and has a through hole. The first cup is connected to the cover and communicates with the through hole in the cover. A tortuous air channel is defined in the first cup. The second cup is mounted on the first cup and has a second tortuous air channel communicating with the first tortuous air channel in the first cup. Accordingly, the leakage of cylinders of the vehicle engine can be precisely detected from the water tank of the vehicle.
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