Unverified85% confidenceDecision RuleTime unknown
泵头结构分按压式与感应式两类：按压式壁挂器需选带回吸设计的泵头，否则每次松手后残液会滴落墙面，回吸阀能将管道内残液吸回避免拉丝滴漏
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85%
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Long-term
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