center back line的意思|示意

Along the leg, there is a center line that runs from the top front to the top back.

沿着腿，有一个中心线，从正上方运行顶端回来。

As soon as I cross over the top of show center and get to about the 500-foot line from looking down, I come all the way back on the stick to get to about seventy-five degrees nose high.

就在我飞过展览中心的上空、回头看到地面上的500英尺标线时，我用力把驾驶杆向后拉到底，使飞机的仰角达到75度。

In the process of the reconstruction, the filtering line, re-sampling, correction and back-projection are revised respectively according to the detector center excursion.

在重建过程中，根据探测器的中心偏移量，对滤波线方程、滤波前后的重排和校正以及反投影过程进行修正处理。

I fly the aircraft back down to the 1,500-foot line at 500 feet and modify my airspeed to get at show center for the pullup. I level off at about 500 feet.

我在500英尺高度上把飞机飞回到1500英尺标线处，并且调整我的空速准备飞到展览中心上空时拉起，在大约500英尺标线处我把飞机改平。