“叶片”的英语？

头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。Overhead, the chopper roared and the big blades churned the air.直升机的旋翼叶片rotor blades on a helicopter推进器的叶片已经安装好了.The propeller blade has been mounted....

“叶片”的拼音为：yè piàn...