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。
The experimental study on the diesel engine fueled with ethanol diesel-oil was carried on with the use of multiple-hole nozzle and conical nozzle respectively.
对高速轻型车用柴油机燃用乙醇柴油燃料的放热率和燃烧特性进行了研究，并对多种比例乙醇柴油的排放特性进行了考察。
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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