环孔钻的英文

• annular auger
• annular boring
• annular drill

• 环:    ring; hoop
• 孔钻:    dowelling jig
• 环孔:    annular distance; annular ring; eye
• 孔钻:    [建筑] dowelling jig
• 环孔材:    buttwood; rind pored wood; rind porous wood; ring pored wood; ring porous wood; ring-porous wood