它必须能够在极端环境下正常工作。
在极端环境下，可有效防寒，保持足部温暖舒适。
Insulate against the cold, keep your foot warm and comfortable while tackling extreme conditions.
防寒：在极端环境下，可有效防寒，保持足部温暖舒适。
Insulate against the cold, keep your foot warm and comfortable while tackling extreme conditions.
在恒星核这样的极端环境下，振动变得更加剧烈，甚至能回到恒星表面。
In that extreme environment they actually become more intense and can return to the surface.
运行可靠，即使在潮湿，肮脏的，极端温度环境的工业。
Operation is reliable even in wet, dirty, and extreme industrial temperature environments.
运行可靠，即使在潮湿，肮脏的，极端温度环境的工业。
Operation is reliable even in wet, dirty, and extreme industrial temperature environments.
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