求翻译：Packaging: High-performance waterproof safety box, box with high impact resistance of polymer materials, one injection molding, compression resilience. Use of flat-type flexible foam rubber seal to ensure airtight waterproof. All hinges use stainless steel shaft, corrosion and durable. The normal operating range of -25 ℃ to +80 ℃; optional moisture cards, to achieve low humidity preservation;是什么意思？

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