air supply hose

基本解释

The ducting hose end set funnel indraft cover use in ventilator installation. The ducting hose else end set discal air exit of power and heat supply set installation.
所述导风管的一端设有供排风扇安装的斗状吸风罩口，导风管的另端设有供电热装置安装的盘状排风口，斗状吸风罩口与盘状排风口相对应；
ip.com
A large part of the Technical Dive Team's training is focused on diving in hazardous materials, Tullbane says. Instead of air tanks, the divers use a hose connected to a surface supply system.
Tullbane说，该小组的大部分训练目标是在充满危险物的地方潜水，不同于以往的氧气罐，他们采用的是连接到水面的供应系统的供给的方式。