这意味着你需要在不同的表面、形状和环境中培养你的脚和手及身体的感觉。
This involves training your feet and your hands - your body's feeling - to different surfaces, shapes and environments.
记录片中，霍金曾一度讲到对于在固体表面进化的任何生命形态而言，脚都是极其重要的。
At one point in the documentary, Hawking describes how feet would be useful for any life form that has evolved on a solid surface.
套服的整个表面组成部分从头到脚都使用两层或更多的强化芳纶组件进行加固，以便在强度和轻便程度方面进行优化。
The entire front-facing portion of the suit is reinforced from head to toe with hardened composites of two or more aramids, optimized for strength and lightness.
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