用光圆钢丝刷清洁配件内侧。

Use a round wire brush to clean the insides of the fittings.

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用钢丝刷清刷接线柱和夹子。

Clean posts and clamp with wire brush.

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砂纸或钢丝刷对一个电钻。

Sand paper or a wire brush on an electric drill.

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砂纸或钢丝刷对一个电钻。

Sand paper or a wire brush on an electric drill.

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