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Your problem is to only look at the forces of contact on you, and that is just this f.
你只需要注意那些直接作用在这个物体上的力,那就只有 f 了
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$firstVoiceSent
- 来自原声例句
Your problem is to only look at the forces of contact on you, and that is just this f.
你只需要注意那些直接作用在这个物体上的力,那就只有 f 了
应用推荐