Then, using special drill hole in the bumper, and detectors were put into holes.

然后，用专用钻头在保险杠上开孔，并将探测器别离装入孔内。

youdao

Then, using special drill hole in the bumper, and detectors were put into holes.

然后，用专用钻头在保险杠上开孔，并将探测器别离装入孔内。

youdao