先将氧气橡皮管紧接在氧气接头上，使焊炬接通氧气。
First connect the oxygen latex duct with the oxygen joint so that the welding torch can be supplied with oxygen.
将氧气传感器接头从增压板壁上的托架上松开。
Release oxygen sensor connector from the bracket on the plenum panel wall.
将氧气传感器接头从增压板壁上的托架上松开。
Release oxygen sensor connector from the bracket on the plenum panel wall.
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