counterbored 📖 中文释义 (counterbore 的过去分词) (用平底扩孔钻)扩孔[锪孔, 镗孔, 镗阶梯孔], 沉孔, 埋头孔 🔗 释义中的汉语词 镗孔 🧩 词形变化 原形 counterbore 📘 English Definition(英文释义) past participle of counterboren a bit for enlarging the upper part of a hole ← counterbore (drill) C 字母词表 counterboring →