pipeless

基本解釋

The practice of subterrene drilling indicates that this method not only adapts to geothermal well, but also is a new pipeless reinforcement method to be applied widely.
熱熔鉆進(jìn)的實(shí)踐證明，該方法不僅適用于地?zé)徙@井，而且也可以作為一種新的無套管護(hù)壁方法推廣應(yīng)用。
pipeless heating and ventilation
無管供暖與通風(fēng)設(shè)備,無管式采暖通風(fēng)
The application of pipeless ultra-fine powder fire extinguishing system in cable tunnel
無管網(wǎng)超細(xì)干粉滅火系統(tǒng)在電纜隧道中的應(yīng)用
pipeless system of heating
無管式采暖系統(tǒng)
pipeless triple valve
無管三通閥