与水平安定面相连的是两个称为 “ 升降舵 ” 的可动操纵面.Attached to the stabilizers are two movable surface called " elevator ".俯仰力矩的变化由升降舵的偏转来提供.A variable pitching moment is provided by moving the elevator.飞机的升降舵可以使它升降自如.The elevator of an airc...
Against other gauges the greenback may still be overvalued.用其他的标准度量,美元将仍然是高估的.The yen slipped against the greenback , trading at 120.34, down 0.78 yen.日元对美元的汇率以120.34兑1美元收盘, 下跌0.78日元.The greenback also rose against the e...