控制单元设有预设的举升高度，左柱上安装有自动挡块。
Control unit with preset lifting height and automatic stop fitted at the left pillar.
提出了肋柱、肋梁和挡土板的计算单元划分以及计算模型的确定方法。
The calculating elements and the calculating model of rib-column, rib-beam and retaining plate of the supporting structure are proposed in this paper.
七十岁地构造修建织物地敏理性量聚积正在挡疱之间地应用收柱地支持预先扫除运用。
The sensitive nature of the architectural fabric of this seventy-year-old structure precluded the use of stacked shoring between floors.
它通常包括以下十二类零件：螺栓、螺柱、螺钉、螺母、自攻螺钉、木螺钉、垫圈、挡圈、销、组合件和连接副、焊钉等。
Usually there are 12 categories which are bolt , stud, screw, nut , self tapping screw, wood screw, gasket, retainer ring, pin, composite member, bolting, and soldering lamp.
主营产品：各种紧固件、标准件、螺栓、螺柱、螺丝、螺钉、木螺钉、自攻螺钉、车削螺丝、组合螺丝、螺母、连接件、平垫、挡圈等。
Main products: various kinds of fasteners, standard, bolts, screws, bolts, screws, wood screws, tapping screws, turning the screw, the combination of screws, nuts, fittings, flat mat, ring, etc.
主营产品：各种紧固件、标准件、螺栓、螺柱、螺丝、螺钉、木螺钉、自攻螺钉、车削螺丝、组合螺丝、螺母、连接件、平垫、挡圈等。
Main products: various kinds of fasteners, standard, bolts, screws, bolts, screws, wood screws, tapping screws, turning the screw, the combination of screws, nuts, fittings, flat mat, ring, etc.
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