螺旋钻孔机是基建施工中常用的大型灌注桩施工机械。

Etarth auger is a large piling driver most in use for civil construction.

youdao

螺旋钻孔机是基建施工中常用的大型灌注桩施工机械。

Etarth auger is a large piling driver most in use for civil construction.

youdao