Based on the analysis of the break mechanism of the cavitations jet, a method of cleaning tubesandpipes based on the principles of cavitations jet is introduced.
在对空化射流的破坏机理进行分析的基础上，介绍了一种基于空化射流的管道清洗方法。
2
Tubesandpipes of the foregoing cross-sections may be polished, coated, bent, threaded, drilled, waisted, expanded, cone-shaped or fitted with flanges, collars or rings.
上述截面的管子可经抛光、涂层、弯曲、攻丝、钻孔、缩腰、胀口、成锥形或装法兰、颈圈或套环。
3
He mounted a specialized wood burning stove in the bed and connected it to the engine through a series of intricately coiled pipesandtubes.