[KongchangAI]
Unverified75% confidenceDecision RuleTime unknown

廉价气压表常在1年内因橡胶密封老化或跌落导致零点漂移,判断方法:不接气嘴时指针未归零/数显非0,可用已知标准值(如4S店实测)对照校验,偏差大即淘汰

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