求翻译：4. 驾驶台必须经常保持内外整洁。航行中每天0400-0800班水手负责驾驶台内外清洁，到港前尤应彻底清洁；离港前，值班驾驶员指派值班水手提前对驾驶台进行全面的清洁和整理。是什么意思？

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4.- driving both inside and outside must be kept clean and tidy. In 0400 - a day sail on sailor is responsible for driving 0800 Desktop clean inside and outside, particularly to Hong Kong should be thoroughly cleaned before leaving Hong Kong, the on-duty operator assigned duty sailors ahead of drivi

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4. one must always keep clean inside and outside. Navigation 0400-0800 daily sailor is responsible for driving clean inside and outside, to Hong Kong in particular should be thoroughly cleaned before leaving Hong Kong on duty pilots assigned the sailor on duty ahead of driving thorough cleaning and

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