n. breaker
misc. cut-off device
隔断安全性高，介质通过防止器时水头损失小，有效的防止倒流污染。
The invention has the advantages of high partition safety, small loss for a tap when a medium passes through the preventer and effective prevention on the pollution caused by the backflow.
油浸分相组合式变压器相间油路自由隔断装置，属变压器的设计制造技术。
An automatic separation device for alternate oil channel of oil-immersed split-phase combined transformer belongs to designing and manufacturing technology of transformer.
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