... 基准井 stratigraphic well 基准孔装配法 hole production method 基准控制放大器 reference control amplifier ...
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In the light of its practical production, the monitoring method and results of deep hole blasting vibration in Wulongquan Open pit are expounded.
结合乌龙泉露天矿的生产实际，阐述了该矿深孔爆破震动的测试方法和测定结果。
An effectual measuring method applied to inspect the chamfering depth of a small hole in production line is introduced.
介绍了一种高效测量方法，适用于小孔倒角深度的工序间快速检测。
The hydraulic vibration oil layer treatment method is researched, because the bridging near hole bot-orn in the oil layers seriously affects the oil production.
针对油层近井底地带堵塞、严重影响油井产量的问题，研发了水力振动法处理油层技术。
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