> For the complete documentation index, see [llms.txt](https://sotay.ehs.vn/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sotay.ehs.vn/an-toan-suc-khoe-moi-truong/an-toan-may/thiet-bi-nang/ma-ni.md).

# Ma ní

![](https://970536015-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LiWHHtX5qwdAhac796j%2F-MdOVs-BVIqQixdMuQ-K%2F-MdOWDK5ZjjV3R6E1HsP%2Fimage.png?alt=media\&token=f738702d-3606-4513-a735-014d0a91f99c)