C. unauthorized repair, misuse, abuse and change.

未经授权的修理、误用、滥用和改动。

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B. solenoid valve stuck, burn C, solution repair or replacement.

电磁线圈烧坏C，阀芯卡死，解决办法检修或更换。

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B. solenoid valve stuck, burn C, solution repair or replacement.

电磁线圈烧坏C，阀芯卡死，解决办法检修或更换。

youdao