flex-duct

基本解释

Each unit includes a full set of filters,25' of12" PVC flex duct a12" duct mounting flange and2- quick connect hose clamps.
每个系统包括一套完整的过滤器，长25"直径12"的软管，12"的管道法兰，卡箍钮。
Each unit includes a full set of filters, 25'of 12" PVC flex duct a 12" duct mounting flange and 2-quick connect hose clamps.
每个系统包括一套完整的过滤器，长25"直径12"的软管，12"的管道法兰，卡箍钮。
Carrying down or away. Used of a duct or vessel.
传送的指通过导管或管道传送下来的或输送的
Don't flex your hand to ask someone come here!
风俗习惯：1不要用你的左手握手！
A duct often contains cross braces.
管道内往往是有支撑拉条。