# 官方文档物理约束为什么失效了

**URL:** <https://forums.unrealengine.com/t/topic/75220>\
**Category:** 简体中文 (Simplified Chinese)\
**Tags:** unreal-engine\
**Created:** [October 5, 2016, 2:55am UTC](https://forums.unrealengine.com/t/topic/75220 "2016-10-05T02:55:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![chrisucdos](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@chrisucdos](https://forums.unrealengine.com/u/chrisucdos)\
**Post date:** [October 5, 2016, 2:55am UTC](https://forums.unrealengine.com/t/topic/75220/1 "2016-10-05T02:55:56Z")

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[https://docs-origin.unrealengine.com/latest/INT/Engine/Physics/Constraints/ConstraintsReference/index.html](https://docs-origin.unrealengine.com/latest/INT/Engine/Physics/Constraints/ConstraintsReference/index.html) 这个链接无法打开

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**Author:** ![Nicki](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/nicki/32/1008725_2.png) [@Nicki](https://forums.unrealengine.com/u/Nicki)\
**Post date:** [October 10, 2016, 11:05am UTC](https://forums.unrealengine.com/t/topic/75220/2 "2016-10-10T11:05:33Z")

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好像无法打开，请问你这个链接地址是否是正确的呢？

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**Author:** ![Nicki](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/nicki/32/1008725_2.png) [@Nicki](https://forums.unrealengine.com/u/Nicki)\
**Post date:** [October 19, 2016, 8:12am UTC](https://forums.unrealengine.com/t/topic/75220/3 "2016-10-19T08:12:53Z")

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> **[Physics](https://docs.unrealengine.com/4.27/en-US/BlueprintAPI/Physics/)**
>
> Physics

请问是不是找这个呢？