Unverified80% confidenceCautionTime unknown
气压泵原理是瞬间释放高压气体冲击堵塞，对老旧陶瓷管、PVC胶接处有崩裂风险；水泥砂浆结块或树根侵入类堵塞气压泵无效，应改用电动螺旋弹簧疏通器
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