记不清了,以前大学学的物理。

来源: 2025-12-19 16:00:53 [博客] [旧帖] [给我悄悄话] 本文已被阅读:

感觉上,cable的“重量”比实际的多。今天在cable机器上leg press, 数字是体重两倍多,平时Free weights 是4 倍。

It makes sense. By manipulating pullies, they don't need to require so many weight plates.