“directional drilling”可以造什么句，directional drilling造句

Magnesium ribbon anodes are installed in radial pattern beneath the tank bottom by directional drilling and then connected electrically with the bottom.

An effective approach of measuring the drilling well's gradient and azimuth angle is presented which uses only one three-axis accelerator and one magnetic sensor to meet the special technique requirement of the directional drilling, and its principle and formula are also given.

The case study of non-excavating directional drilling technique in power engineering is introduced, flow sheet, construction equipment and pipe installation of non-excavating technique are analysed.

Application of polar stereographic projection in the well trajectory design and calculation of directional drilling