短語(yǔ)詞組短語(yǔ)buried via hole 埋孔;埋導(dǎo)孔;埋通孔Blind and Buried Hole Drilling 孔鉆孔Blind & Buried Hole Drilling 孔鉆孔;盲孔鉆孔hole collapse buried cage 塌孔埋籠 返回 buried hole