鍃孔
- 拼音
- huo1 kong3
an enlargement at the outer end of a drilled hole, either funnel-shaped (a countersink) or cylindrical (a counterbore)
汉英词典
an enlargement at the outer end of a drilled hole, either funnel-shaped (a countersink) or cylindrical (a counterbore)
资料来源:汉英词典 · 来源说明 · 原始版本