收到GS的通知后，开闭排阀排放旧油。的翻译：After you receive notification of GS, closing old oil exhaust valve discharge. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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After you receive notification of GS, closing old oil exhaust valve discharge.

After receives GS the notice, the make and break delivery valve discharges the old oil.

after the receipt of notice GS closed exhaust valve emission old oil.

After you receive notification of GS, closing old oil exhaust valve discharge.