基本解释n.翼展同根派生 英汉例句用作名词 (n.)The pilot first set the span dial to the known wingspan of his prospective target, then the range dial to the maximum for accurate fire.飞行员首先把宽度转盘设置到他预期的目标的的翼展宽度，然后距离转盘到精确开火的最大值。