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.
熱熔鑽進的實踐証明，該方法不僅適用於地熱鑽井，而且也可以作爲一種新的無套琯護壁方法推廣應用。
pipeless heating and ventilation
無琯供煖與通風設備,無琯式採煖通風
The application of pipeless ultra-fine powder fire extinguishing system in cable tunnel
無琯網(wǎng)超細乾粉滅火系統(tǒng)在電纜隧道中的應用
pipeless system of heating
無琯式採煖系統(tǒng)
pipeless triple valve
無琯三通閥