expansion bolt

同义词释义

1)expansion bolt,膨胀式锚杆2)expansion type roof bolt,膨胀式锚杆3)Expansion,膨胀4)expand,膨胀5)swelling,膨胀6)dilation,膨胀7)dilate,膨胀8)dilatation,膨胀9)bloating,膨胀10)inflation,膨胀