The First Step (Degreasing) of the procedure is designed to remove dirt, dust, oil and grease. A water-soluble detergent is used to accomplish this, or a solvent.
第一步（去油）：去除污垢、灰尘、油和脂。使用水溶性去污剂或溶剂来完成该步骤。
The First Step (Degreasing) of the procedure is designed to remove dirt, dust, oil and grease. A water-soluble detergent is used to accomplish this, or a solvent.
第一步（去油）：去除污垢、灰尘、油和脂。使用水溶性去污剂或溶剂来完成该步骤。
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