開孔
拼音：kāi kǒng英文解釋：
【化】 opening; perforate相關詞條：
1.trepanning 2.openpore 3.bore漢語造句：
- 射擊孔，炮眼城牆上的開孔；炮眼An opening in a fortified wall; an embrasure
- 諸如卡片、磁芯等數據媒體或設備上的開孔。An opening in a data medium or device such as a card or magnetic core
- 壓力容器開孔結構分析的快速多極邊界元研究Fast multipole BEM for the analysis of pressure vessel opening structures
- 開孔使槭樹汁流出to tap a sugar maple