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1)  Acoustic detection of dry hole
干孔声波探测
2)  acoustic detection
声波探测
1.
Study and application of method for analysis on cavitation characteristics of hydro-turbine based on acoustic detection;
基于声波探测的水轮机空化分析方法研究与应用
3)  acoustic sounding
声波探测
1.
It is mainly concerned about the basic theories of acoustic sounding and physical properties of rocks influence on acoustic sounding.
岩体爆破效应的声波探测是通过检测声波在爆破前后的岩体中的声学参数(声波波速、衰减系数、波形、频率、振幅等)的变化,间接地分析岩体内结构状态、力学参量以及爆破震伤程度等的一种测试技术。
4)  acoustic measuring boreholes arrangement
声波测孔
1.
Theoretical basis of the acoustic measuring boreholes arrangement for broken rock zone test in gently inclined thin layer weakness structure was studied through analyzing the mechanical characteristics of layered rock mass,the propagation rule of acoustic and distributions characteristics of plastic zone and slip zone in layered rock mass.
从层状岩体的力学特性、声波在层状岩体中的传播规律、围岩塑性区和剪裂区的分布特征3个方面,对缓倾薄层弱结构松动圈声波测试测孔布置的理论依据进行研究,提出声波测孔布置3项基本原则,即:巷道两帮测孔顺层布置;顶底板测孔垂直于岩层布置;塑性区和剪裂区较大部位加大声波测孔控制深度。
5)  Sonic measurement
声波仪探测
6)  ultrasonic detection
超声波探测
补充资料:核爆炸次声波探测(见核爆炸探测)


核爆炸次声波探测(见核爆炸探测)
nuclear explosion infrasound detection

hebaozha eishengbo tanee核爆炸次声波探测(nueleaf。xplosi。。infrasound deteetion)见核爆炸探坝lJ。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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