The way of installing QJ-40 gas-pressure relay and the oil injection craftwork of transformer are key influencing factors.
气体继电器安装方式和全密封变压器注油工艺是主要影响因素。
The way of installing QJ-40 gas-pressure relay and the oil injection craftwork of transformer are key influencing factors.
气体继电器安装方式和全密封变压器注油工艺是主要影响因素。
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