1.
Research on GMM-based Low-frequency High-power Borehole Sound Source;
基于GMM的低频大功率井下声发生器的应用基础研究
2.
indirect-fired downhole steam generator
间接燃烧式井下蒸汽发生器
3.
direct-fired downhole steam generator
直接燃烧式井下蒸汽发生器
4.
The Design and Research of the Downhole Pressure Signal Producer Controlled by Rotary Valve;
井下旋转控制压力信号发生器的设计与研究
5.
Experimental study and application of plugging removal by Hartmann acoustic generators on sandy wells
哈特曼声波发生器在出砂井解堵中的室内实验与应用
6.
vocal organ and physiology of vocalization
发声器官与发声生理
7.
A device used underwater to produce pulses of sound, as for an echo sounder.
声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置
8.
Theoretical and Numerical Study of Borehole Acoustic and Electric Field Excited by External Acoustic Sources under Seismoelectric Effects
震电效应下井外声源激发井孔声电场的理论研究与数值模拟
9.
You can also download extra background sounds for use with BrainWave Generator.
您还可以下载额外的背景声用脑波发生器.
10.
ultrasonic generator
超声波振荡器超声波发生器
11.
Flooding of three vertical shafts trapped the miners as they changed shifts.
三个竖井发生透水，把正在换班的工人困在井下。
12.
I heard a noise from the well and saw the cat had dropped down.
我听见井里有声音，发现原来是猫掉下去了。
13.
saturated diode noise generator
饱和二极管噪声发生器
14.
ultrasonic negative-ion generator
超声波负离子发生器
15.
carnival noise-maker
噪声发生器,狂欢节用
16.
Seventy-two miners have been found alive.
爆炸发生后，井下矿工有72人得以生还。
17.
The machine made a hissing sound and then stopped.
机器发出一声嘶嘶的声音，停了下来。
18.
sonic digital cartridge
数字声波井下电子线路