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to phrases
refraction shooting
expl.
折射爆破
地震折射法的原理类似于地震反射法,但是记录地震信号的检测仪与爆炸点的距离,要比勘探界面的深度大得多。一般来说,时间缩短,距离增长,而激波脉冲强度减弱了。对某指定地区的勘探,采用折射法比反射法所用的时间短,费用少
oil
折射法勘探
tech.
折射爆破
refraction shooting
:
2 phrases
in 1 subject
Oil / petroleum
2
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