Water flotation device with megaphone
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
下载链接:
https://www.forestdata.cn/dataDetail.html?id=d6079814-a85b-4729-92b2-158fa313de04
下载链接
链接失效反馈官方服务:
资源简介:
A water safety flotation device includes a buoyant body and a hollow core. The buoyant body has a length and a width, with the length defining a longitudinal axis of the device. The hollow core extends along the longitudinal axis of the body. The hollow core is substantially conical and provides a first opening in the body at a first end and a second opening in the body at a second end. The hollow core serves the function of a megaphone.
提供机构:
国家林业和草原科学数据中心
创建时间:
2023-02-12



