drillmaschine, all samenarten, knollengewaechse individually in an equal abstaenden operations, in a right deep in the ground drillt

• 1. Device for optimizing performance of air/water heat pump in winter period by storing energy in deep ground, has managing unit managing operation of device according to ground temperature, liquid, surrounding air and sun temperature [P] . 法国专利： FR2993348A1 . 2014-01-17

  机译： 通过将能量储存在深层地面中来优化冬季空气/水热泵性能的装置，具有管理单元，该管理单元根据地面温度，液体，周围空气和太阳温度来管理装置的运行

• 1. Examples of ground support practice in challenging ground conditions at Vale’s deep operations in Sudbury [O] . Xiaolin Yao, Anneta Sampson-Forsythe, Allan Punkkinen 2014
• 2. Deep Operations in Airland Battle Doctrine: The Employment of U.S. Ground Forces in Deep Operational Maneuver. [R] . Crawford, D. E. 1989