The other day，The company held a joint R & D center between schools and enterprises.“Research and Application of Key Technologies for Stable Operation of Large Tower Crane”Project Phase II Results Acceptance Meeting，Professor Cao Junyi of Xi'an Jiaotong University was invited to the meeting.，Zhao Wu, Chang'an University、Associate Professor Yang Panpan and Liu Qiufang, Director of Science and Technology Development Department of Shaanxi Coal Group, formed a phased acceptance committee.，Chief Engineer Liu Difang serves as the director of the phased acceptance committee.。Members of the project team of both schools and enterprises reported the results of the second phase of the project.，It has been unanimously approved by the expert group.，The acceptance committee makes an objective evaluation of the phased results.，Put forward suggestions on the implementation of the next phase of the project。