multiple hole nozzle 多孔喷油口
open multiple hole tubes 开口式多孔管
multiple hole core 多孔磁芯
multiple hole orifice plates 多洞孔板
Multiple Hole Water Drainage 多孔去水
The production line is mainly used in producing PVC, PE multiple-hole pipe. The produced pipes is widely used in laying optical cable.
本生产线主要用于生产PVC、PE多孔管，生产的管子广泛适用于穿、放光电缆。
Combined with the strengthening reconstruction project of Songyang River oblique multiple-hole in Hubei, the disease phenomena, reasons and developing process of the kind bridge were analyzed.
结合湖北省松阳河斜交连孔拱桥的加固改造工程，研究分析了该类桥的病害现象、病害原因及发展过程。
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