... beam pumping well 游梁式抽油机抽油的井 beam rating 驴头负荷 beam reception 定向接收 ...
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The values of the lateral and vertical vibration acceleration of PCT beam are all under the safety limits regulated by Code for Rating Railway Bridges.
PCT梁的横、竖向振动加速度值都不大，均在《铁路桥梁检定规范》规定的限值以内；
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