parallel wire短语¹⁴⁴⁹⁷²⁺² 基本例句 平行双线 In order to provide the theoretical basis for design and safety assessment of parallel/span> wire cable fatigue properties, the fatigue life model of parallel wire cable is established. 目的建立平行钢丝拉索疲劳寿命的理论分析模型,为平行钢丝拉索的设计及疲劳评定提供理论依据。 dictall