It actually gets wind speed and direction from the GPS unit embedded within it.

它实际上是通过内置的GPS装置来获得风速和风向的。

They're going to tell you temperature, relative humidity, wind speed and direction, as well as pressure.

它们会告诉你温度、相对湿度、风速、风向和大气压。

Pilots use it to help with landing planes and identifying dangerous changes in wind speed and direction known as wind shear.

飞行员使用它来帮助飞机着陆，并识别风速和方向的危险变化，即风切变。

And they looked at factors like wind speed and direction, too.

他们还研究了风速和风向等因素。

Changes in wind speed and direction with height, also known as wind shear, can either encourage or inhibit hurricane development.

风速和风向随高度的变化，也称为风切变，可以鼓励或抑制飓风的发展。