基本解释螺旋桨毂盖英汉例句双语例句For the KC-100, Hartzell will provide a 3-blade, 78" diameter propeller, integrating its lightweight compact hub and polished aluminum spinner."Hartzell将为KC-100提供3叶、直径78英寸的螺旋桨，包括集成在内的轻质的桨毂和光滑的铝质整流罩。