Solution: Check-in code frequently throughout the day.

解决方案：全天频繁地签入代码。

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Solution: check oil pressure and replace parts if necessary.

解决办法：检查油压，必要时更换部件。

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Solution: check the spark plug is too much carbon, replace the spark plug.

解决办法：检查火花塞是否积碳过多，更换火花塞。

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Solution: check the spark plug is too much carbon, replace the spark plug.

解决办法：检查火花塞是否积碳过多，更换火花塞。

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