Insulate electrical current - rubber bands can act as insulators for low wattage electrical current. Wrap a rubber band around an exposed region of a wire (before the wire is live).
隔离电流-橡皮圈在低电流瓦数下做绝缘体，因此可在暴露电线芯的地方缠上橡皮筋(在不通电的情况下)。
The case is different completely when it was exposed in indoor, as raw rubber can be used in indoor exposure 5 years or more after.
户内暴露试验却完全不同，尤其生胶，试验5年或更长时间，还可以再使用。
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