1) porthole;embrasure
枪眼; 炮眼
4) machicolate vt.
开牒眼(枪眼)
5) blast-hole arrangement
炮眼布置
1.
Computer aided design of the blast-hole arrangement plan in heading tunnel;
掘进巷道炮眼布置计算机辅助设计
2.
According to the ore nature property and actual mining condition in the mine,the problem of high powder ore ratio is solved by modifying the blasting parameter and the blast-hole arrangement,the lump ore ratio and the ore utilization ratio are increased,thus,the mining cost is reduced and economic profit of the mine is increased.
针对我矿矿石的本质特性和开采的实际情况,通过改进采面爆破参数和炮眼布置方式,解决了矿石粉矿率高的问题,有效地提高了矿石块度及煅烧矿石的利用率,降低了采矿成本,增加了企业经济效益。
6) surging perforation
炮眼清洗
1.
The technology uses deep penetration perforation charge with high perforation density and large perforation diameter and surging perforation with greater pressure differential.
它采用高孔密大孔径深穿透射孔弹和大压差抽吸炮眼清洗技术,不仅能提高油井产能,解除近井带污染,还可以改善防砂完井效果。
补充资料：枪眼
1.碉堡或墙壁上开的供射击用的小孔。 2.枪弹打穿的洞。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条