A Novel Control System of Flexible Impact Positive Displacement Motor for Underground Directional Drilling in Coalmines

Abstract
No abstract available
Funding Information
  • the National Key Research and Development Plan of China (2017YFC0808202)
  • Major special project of science and Technology in Shanxi Province (20181101013)
  • Science and Technology Innovation Venture Capital Special Project of Tiandi Science and Technology Co., Ltd. (2020-TD-MS011)