前期洽谈阶段一是减少盲目跟踪,多分析多判断,综合各方面的因素,选择最有价值的信息去联系。二是选择工程绝对控制对象,制定科学有效的攻关实施方案,有步骤有计划地进行,确保攻关成本有效地发挥。三是建立合作方的信用担保制度和信用档案。四是 The first phase of the negotiation stage is to reduce blind tracking, multi-analysis and more judgments, synthesizing various factors and selecting the most valuable information to contact. The second is to choose the absolute control object of the project, to formulate a scientific and effective research project, with planned steps to ensure that the cost of tackling the problem effectively. Third, establish a credit guarantee system and credit files for the partners. Four is