1、Then, using special drill hole in the bumper, and detectors were put into holes.
然后，用專(zhuān)用鉆頭在保險(xiǎn)杠上開(kāi)孔，并將探測(cè)器別離裝入孔內(nèi)。

2、The special drill press for the stand pillar is introduced.
介紹了一種高速公路護(hù)欄立柱專(zhuān)用鉆床。

3、Maybe use this as a special drill with less people.
這個(gè)練習(xí)可能對(duì)很少的人有用。

special drill翻譯