本文分析了盘面比、叶数、整体螺距角、周期螺距角、纵倾角、叶剖面形状等主要参数的变化对全方向推进器水动力性能的影响。
Analyze the influence of main parameters including exp. area ratio, blade number, collective pitch angle, section shape, cyclic pitch angle and rake angle on the performance of VVP.
液压重物推进器、分离式液压千斤顶及超高压泵站，用于超重大件物品装卸位移，建筑物整体平移。
Hydraulic heavy boosters, the separate hydraulic jacks and UHP water pumping stations, for overweight handling of bulky items displacement, building a whole pan.
液压重物推进器、分离式液压千斤顶及超高压泵站，用于超重大件物品装卸位移，建筑物整体平移。
Hydraulic heavy boosters, the separate hydraulic jacks and UHP water pumping stations, for overweight handling of bulky items displacement, building a whole pan.
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