For the surface finishing has direct clamping, must adopt padded protection measures, so as to avoid injury has been machined surface.

对于直接夹持己精加工的表面时，必须采取加软垫等保护措施，以免夹伤己加工面。

youdao

Number two, instead of a packed, hard surface the high jump was making the transition to a soft, padded landing which meant you could do things differently.

FORBES: Tim Ferriss: What Cooking Can Teach You About Learning