The combination of PVC pipe laying will function in draining rainwater to the great utmost.
结合PVC管道的铺设,能最大地发挥其排导雨水的功效.
互联网摘选
顶管施工技术作为一种现代化的管道敷设施工方法, 具有很多优点.
互联网摘选
Design of a Bionic Ditch Digger Study on the Technology Laying Drain Pipe With Pad
仿生式开沟机设计理论的研究排水管垫块法施工技术研讨
互联网摘选
Research on High-Speed Wire Pipe of Laying Head and Working Quality Improvement
高速线材吐丝机吐丝管空间曲线研究及吐丝质量改进
互联网摘选
