Powered corneal burr

中文翻译动力式角膜钻孔器

同义词释义

1)Powered corneal burr,动力式角膜钻孔器

2)casing collar kick,磁力钻孔测深器

3)jet-piercing burner,热力钻孔喷焰器

4)downhole motor drill,孔底动力钻机

5)diaphragm-type power brake,膜片式动力制动器

6)elevation bore,仰角钻孔

High position bores and elevation bores methane drainage technique can prevent gas problem successfully.

采用高位钻孔和仰角钻孔抽放瓦斯技术,有效地防止了瓦斯超限。