“平滑地”用英语怎么说？

机翼的一端平滑地变成尖细状.One end of the wing tapers smoothly.通过调节晶闸管的触发脉冲,TCSC可以 快速、平滑地改变它的阻抗.With the adjustment of the thyristors, its equivalent fundamental impedance can be changed rapidly and smoothly.先保持水平直线飞行, 当直升机通过操控者后,开始平...