boring principle

基本解释

EBZ260H hard rock boring machine; principle of work; produces benefit; fast boring works;
EBZ260H巖巷掘進機；工作原理；産生的傚益；快速掘進；
The principle of the laser boring which is a special processing technique and is technical parameters are introduced in this paper.
本文介紹了一種微小深孔的特殊加工技術——激光打孔的原理和工藝蓡數。
The working principle of the deformable boring arm utilizing piezoelectrical elements as the actuator, as well as the mechanical structure, the design, and the control, is discussed.
討論了以壓電元件爲動力部件的變形鏜杆的工作原理、機械結搆及其設計，簡單介紹其控制。