It is studied to apply clean energy in the process of steel-making.

对在钢铁生产过程中使用清洁能源进行了探讨。

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Prepare the infant's skin by making sure it is clean and dry.

婴儿皮肤准备，确保皮肤清洁干燥。

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Prepare the infant's skin by making sure it is clean and dry.

婴儿皮肤准备，确保皮肤清洁干燥。

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