求翻译：如果卖方提供的技术资料和图纸被发现不完整，或在运输途中丢失或损坏，卖方在30天内免费向买方增补丢失或损坏部分的技术资料和图纸。是什么意思？

If the seller provides technical information and drawings are found incomplete, or missing or damaged in transit, the seller in addition to the buyer free of charge within 30 days of lost or damaged part of the technical information and drawings.

If the seller provides the technical information and drawings were found during the transportation is incomplete, or missing or damaged, the seller within 30 days in addition to the buyer free lost or damaged part of the technical information and drawings.

If the seller provides the technical data and the blueprint were discovered not completely, either loses or the damage on the way in the transportation, the seller free loses or the damage part technical data and the blueprint in 30 days to the buyer subjunction.

If the seller provides technical information and drawings were found incomplete, or lost or damaged in transit, added to the seller within 30 days free of charge to the buyer is missing or damaged part of the technical information and drawings.

If the seller provides the technical data and the blueprint were discovered not completely, either loses or the damage on the way in the transportation, the seller free loses or the damage part technical data and the blueprint in 30 days to the buyer subjunction.