... 防水型仪表 water-proof instrument 防水绝缘 water-proof insulation 防水层 water-proof layer ...
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这种细致入微的设计决定了羽毛能够防水，绝缘，符合空气动力学等等。
The details of that design can be tweaked to change a feather's characteristics, offering waterproofing, insulation, streamlining and so on.
通常电缆的绝缘层在数小时甚至数天之后才能恢复其防水能力。
Typically, the insulation will regain its ability to block water hours, or even days, later.
通常高压电缆使用的是特殊的防水高分子聚合材料，具有很高的绝缘强度。
High voltage cables are typically insulated with special water-resistant polymers that have high-dielectric strength.
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