国产牲交视频免费无遮挡,日日摸日日碰夜夜爽免费,国产毛片一级国语版,久久国产高清免费,京香julia在线播放,らだ天堂√在线中文,青青青在线视频国产剧情,婷婷国产成人精品一区二,国产精品视精品国产免费,可以免费观看的国产视频

Galvanized air duct

鍍鋅風(fēng)管呈現(xiàn)噪音，很大程度上其實(shí)就是按照物理原理，空氣活動(dòng)越快，噪音的體現(xiàn)就越大。然后，在日常維護(hù)中，鍍鋅風(fēng)管會(huì)有一定的注意事項(xiàng)。經(jīng)常檢查鍍鋅風(fēng)管設(shè)備的老化保護(hù)有很好的效果，也有助于降低噪音。

The galvanized air duct presents noise. To a large extent, according to the physical principle, the faster the air activity, the greater the noise. Then, in daily maintenance, there will be certain precautions for galvanized air duct. Often check the aging protection of galvanized air duct equipment, which has a good effect and helps to reduce noise.

因?yàn)殄冧\風(fēng)管廠家在使用時(shí)沒(méi)有很好的消聲功能，所以要給風(fēng)管加消聲器，導(dǎo)熱系數(shù)太大，所以沒(méi)有保溫功能，所以在使用時(shí)需要再加一層保溫層，對(duì)使用環(huán)境也有要求不要在一些潮濕的環(huán)境附近使用，這樣鍍鋅風(fēng)管往往會(huì)受到環(huán)境的影響而生銹。

Because the galvanized air duct manufacturer does not have a good silencing function when using, it is necessary to add a muffler to the air duct. The thermal conductivity is too large, so it has no thermal insulation function. Therefore, it is necessary to add another layer of thermal insulation layer when using. It also has requirements for the use environment. Do not use it near some humid environment, so the galvanized air duct will often rust under the influence of the environment.