Granite model of the constitutive equation with thermo-mechanical coupling effects provides a basis for the establishment of high - temperature geothermal development drilling rock of stability.
热力耦合作用下花岗岩流变模型的本构方程的建立为高温岩体地热开发钻井施工及其稳定性研究提供了依据。
In the light of the problem of excessive fuel consumption in hydraulic torque converter drive of mechanical drilling RIGS, experiments on the hydraulic coupling transmission are conducted.
针对机械驱动钻机液力变矩器传动消耗燃油多的问题，开展了液力偶合器传动的试验。
The invention relates to a drilling machine which is mainly used for processing a plug part of a quick coupling.
本发明涉及一种钻孔机，其主要用于加工快速接头的插头部分。
The invention relates to a drilling machine which is mainly used for processing a plug part of a quick coupling.
本发明涉及一种钻孔机，其主要用于加工快速接头的插头部分。
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