1) pinking
[英][piŋk] [美][pɪŋk]
轻微爆震;穿小孔
2) trace-knock
轻微爆震
3) trace-knock level
轻微爆震级
4) punching and blasting
穿孔爆破
1.
And it puts out the way to solve the present problem in unwatering by punching and blasting, and pumping water by intercepting ditch and dipping plash and infiltration well to solve the problems in pumping in the mining pit during rainy season in the strip mine.
文中论述了霍林河煤田南露天矿目前的疏干状况和存在的问题,并针对存在的问题,提出了用穿孔爆破的方法解决煤层弱含水层的疏干问题。
补充资料：轻微
1.细小，细微。 2.菲薄，微薄。 3.卑微，微贱。 4.程度浅。 5.不重要。
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